856972051201 has 8 divisors (see below), whose sum is σ = 980878324544. Its totient is φ = 733436201520.

The previous prime is 856972051189. The next prime is 856972051217. The reversal of 856972051201 is 102150279658.

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 856972051201 - 2⁷ = 856972051073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (856972051231) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 92600955 + ... + 92610208.

It is an arithmetic number, because the mean of its divisors is an integer number (122609790568).

Almost surely, 2^856972051201 is an apocalyptic number.

It is an amenable number.

856972051201 is a deficient number, since it is larger than the sum of its proper divisors (123906273343).

856972051201 is a wasteful number, since it uses less digits than its factorization.

856972051201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185211831.

The product of its (nonzero) digits is 302400, while the sum is 46.

The spelling of 856972051201 in words is "eight hundred fifty-six billion, nine hundred seventy-two million, fifty-one thousand, two hundred one".