857465832186145 has 64 divisors (see below), whose sum is σ = 1344884797541376. Its totient is φ = 509305482362880.

The previous prime is 857465832186083. The next prime is 857465832186169. The reversal of 857465832186145 is 541681238564758.

It is not a de Polignac number, because 857465832186145 - 2²⁵ = 857465798631713 is a prime.

It is a super-2 number, since 2×857465832186145² (a number of 31 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 161867061 + ... + 167080450.

It is an arithmetic number, because the mean of its divisors is an integer number (21013824961584).

Almost surely, 2^{857465832186145} is an apocalyptic number.

857465832186145 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

857465832186145 is a deficient number, since it is larger than the sum of its proper divisors (487418965355231).

857465832186145 is a wasteful number, since it uses less digits than its factorization.

857465832186145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328947890.

The product of its digits is 1548288000, while the sum is 73.

The spelling of 857465832186145 in words is "eight hundred fifty-seven trillion, four hundred sixty-five billion, eight hundred thirty-two million, one hundred eighty-six thousand, one hundred forty-five".