1572396973056 has 2112 divisors, whose sum is σ = 6356298547200. Its totient is φ = 379243855872.

The previous prime is 1572396972919. The next prime is 1572396973139. The reversal of 1572396973056 is 6503796932751.

1572396973056 is a `hidden beast` number, since 1 + 5 + 7 + 239 + 6 + 97 + 305 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 1572396972984 and 1572396973002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 12381078465 + ... + 12381078591.

Almost surely, 2^{1572396973056} is an apocalyptic number.

1572396973056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1572396973056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3178149273600).

1572396973056 is an abundant number, since it is smaller than the sum of its proper divisors (4783901574144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1572396973056 is a wasteful number, since it uses less digits than its factorization.

1572396973056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 64297800, while the sum is 63.

It can be divided in two parts, 1572396 and 973056, that added together give a palindrome (2545452).

The spelling of 1572396973056 in words is "one trillion, five hundred seventy-two billion, three hundred ninety-six million, nine hundred seventy-three thousand, fifty-six".