857936722954 has 8 divisors (see below), whose sum is σ = 1354636931040. Its totient is φ = 406391079276.

The previous prime is 857936722949. The next prime is 857936723041. The reversal of 857936722954 is 459227639758.

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

It is a super-2 number, since 2×857936722954² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 857936722954.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11288641054 + ... + 11288641129.

It is an arithmetic number, because the mean of its divisors is an integer number (169329616380).

Almost surely, 2^857936722954 is an apocalyptic number.

857936722954 is a deficient number, since it is larger than the sum of its proper divisors (496700208086).

857936722954 is a wasteful number, since it uses less digits than its factorization.

857936722954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22577282204.

The product of its digits is 228614400, while the sum is 67.

The spelling of 857936722954 in words is "eight hundred fifty-seven billion, nine hundred thirty-six million, seven hundred twenty-two thousand, nine hundred fifty-four".