870054663257 has 8 divisors (see below), whose sum is σ = 937006574784. Its totient is φ = 803106270288.

The previous prime is 870054663239. The next prime is 870054663293. The reversal of 870054663257 is 752366450078.

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 870054663257 - 2²² = 870050468953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 870054663199 and 870054663208.

It is not an unprimeable number, because it can be changed into a prime (870054663227) 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, 354443 + ... + 1365920.

It is an arithmetic number, because the mean of its divisors is an integer number (117125821848).

Almost surely, 2^870054663257 is an apocalyptic number.

It is an amenable number.

870054663257 is a deficient number, since it is larger than the sum of its proper divisors (66951911527).

870054663257 is a wasteful number, since it uses less digits than its factorization.

870054663257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759279.

The product of its (nonzero) digits is 8467200, while the sum is 53.

The spelling of 870054663257 in words is "eight hundred seventy billion, fifty-four million, six hundred sixty-three thousand, two hundred fifty-seven".