1421250959520 has 1152 divisors, whose sum is σ = 5988129638400. Its totient is φ = 299750989824.

The previous prime is 1421250959483. The next prime is 1421250959521. The reversal of 1421250959520 is 259590521241.

1421250959520 is a `hidden beast` number, since 1 + 4 + 2 + 1 + 2 + 50 + 9 + 595 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1421250959521) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1654540851 + ... + 1654541709.

It is an arithmetic number, because the mean of its divisors is an integer number (5198029200).

Almost surely, 2^{1421250959520} is an apocalyptic number.

1421250959520 is a gapful number since it is divisible by the number (10) 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 1421250959520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2994064819200).

1421250959520 is an abundant number, since it is smaller than the sum of its proper divisors (4566878678880).

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

1421250959520 is a wasteful number, since it uses less digits than its factorization.

1421250959520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122 (or 1111 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 45.

The spelling of 1421250959520 in words is "one trillion, four hundred twenty-one billion, two hundred fifty million, nine hundred fifty-nine thousand, five hundred twenty".