856954070292 has 12 divisors (see below), whose sum is σ = 1999559497376. Its totient is φ = 285651356760.

The previous prime is 856954070261. The next prime is 856954070293. The reversal of 856954070292 is 292070459658.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856954070293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35706419584 + ... + 35706419607.

Almost surely, 2^856954070292 is an apocalyptic number.

It is an amenable number.

856954070292 is an abundant number, since it is smaller than the sum of its proper divisors (1142605427084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

856954070292 is a wasteful number, since it uses less digits than its factorization.

856954070292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71412839198 (or 71412839196 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 57.

The spelling of 856954070292 in words is "eight hundred fifty-six billion, nine hundred fifty-four million, seventy thousand, two hundred ninety-two".