1871520423696 has 1600 divisors, whose sum is σ = 7486395840000. Its totient is φ = 436431421440.

The previous prime is 1871520423629. The next prime is 1871520423719. The reversal of 1871520423696 is 6963240251781.

It is a happy number.

1871520423696 is a `hidden beast` number, since 1 + 8 + 7 + 1 + 520 + 4 + 23 + 6 + 96 = 666.

It is a super-2 number, since 2×1871520423696² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 5362522530 + ... + 5362522878.

It is an arithmetic number, because the mean of its divisors is an integer number (4678997400).

It is a 1-persistent number, because it is pandigital, but 2⋅1871520423696 = 3743040847392 is not.

Almost surely, 2^{1871520423696} is an apocalyptic number.

1871520423696 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 1871520423696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3743197920000).

1871520423696 is an abundant number, since it is smaller than the sum of its proper divisors (5614875416304).

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

1871520423696 is a wasteful number, since it uses less digits than its factorization.

1871520423696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542 (or 527 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 1871520423696 in words is "one trillion, eight hundred seventy-one billion, five hundred twenty million, four hundred twenty-three thousand, six hundred ninety-six".