787987525985 has 8 divisors (see below), whose sum is σ = 1031547306816. Its totient is φ = 573081837040.

The previous prime is 787987525891. The next prime is 787987525999. The reversal of 787987525985 is 589525789787.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 787987525985 - 2⁸ = 787987525729 is a prime.

It is a super-2 number, since 2×787987525985² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7163522909 + ... + 7163523018.

It is an arithmetic number, because the mean of its divisors is an integer number (128943413352).

Almost surely, 2^787987525985 is an apocalyptic number.

It is an amenable number.

787987525985 is a deficient number, since it is larger than the sum of its proper divisors (243559780831).

787987525985 is a wasteful number, since it uses less digits than its factorization.

787987525985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14327045943.

The product of its digits is 3556224000, while the sum is 80.

The spelling of 787987525985 in words is "seven hundred eighty-seven billion, nine hundred eighty-seven million, five hundred twenty-five thousand, nine hundred eighty-five".