869609657001 has 16 divisors (see below), whose sum is σ = 1167218640000. Its totient is φ = 575870620800.

The previous prime is 869609656987. The next prime is 869609657003. The reversal of 869609657001 is 100756906968.

It is a happy number.

It is not a de Polignac number, because 869609657001 - 2¹⁴ = 869609640617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (869609657003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11854231 + ... + 11927363.

It is an arithmetic number, because the mean of its divisors is an integer number (72951165000).

Almost surely, 2^869609657001 is an apocalyptic number.

It is an amenable number.

869609657001 is a deficient number, since it is larger than the sum of its proper divisors (297608982999).

869609657001 is a wasteful number, since it uses less digits than its factorization.

869609657001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99536.

The product of its (nonzero) digits is 4898880, while the sum is 57.

The spelling of 869609657001 in words is "eight hundred sixty-nine billion, six hundred nine million, six hundred fifty-seven thousand, one".