856262549487 has 16 divisors (see below), whose sum is σ = 1204180400000. Its totient is φ = 539713619424.

The previous prime is 856262549459. The next prime is 856262549509. The reversal of 856262549487 is 784945262658.

It is not a de Polignac number, because 856262549487 - 2²⁴ = 856245772271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856262549447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15023812 + ... + 15080697.

It is an arithmetic number, because the mean of its divisors is an integer number (75261275000).

Almost surely, 2^856262549487 is an apocalyptic number.

856262549487 is a deficient number, since it is larger than the sum of its proper divisors (347917850513).

856262549487 is a wasteful number, since it uses less digits than its factorization.

856262549487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30105030.

The product of its digits is 232243200, while the sum is 66.

The spelling of 856262549487 in words is "eight hundred fifty-six billion, two hundred sixty-two million, five hundred forty-nine thousand, four hundred eighty-seven".