870640870525351 has 8 divisors (see below), whose sum is σ = 894236224598640. Its totient is φ = 847048912227648.

The previous prime is 870640870525343. The next prime is 870640870525411. The reversal of 870640870525351 is 153525078046078.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 870640870525351 - 2³ = 870640870525343 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 870640870525351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870640870525051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 848424166 + ... + 849449731.

It is an arithmetic number, because the mean of its divisors is an integer number (111779528074830).

Almost surely, 2^{870640870525351} is an apocalyptic number.

870640870525351 is a deficient number, since it is larger than the sum of its proper divisors (23595354073289).

870640870525351 is a wasteful number, since it uses less digits than its factorization.

870640870525351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697887793.

The product of its (nonzero) digits is 56448000, while the sum is 61.

The spelling of 870640870525351 in words is "eight hundred seventy trillion, six hundred forty billion, eight hundred seventy million, five hundred twenty-five thousand, three hundred fifty-one".