864502990370 has 32 divisors (see below), whose sum is σ = 1582583301936. Its totient is φ = 339924153600.

The previous prime is 864502990331. The next prime is 864502990423. The reversal of 864502990370 is 73099205468.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 176431081369 + 688071909001 = 420037^2 + 829501^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 565700 + ... + 1431440.

Almost surely, 2^864502990370 is an apocalyptic number.

864502990370 is a deficient number, since it is larger than the sum of its proper divisors (718080311566).

864502990370 is a wasteful number, since it uses less digits than its factorization.

864502990370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867446.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 864502990370 in words is "eight hundred sixty-four billion, five hundred two million, nine hundred ninety thousand, three hundred seventy".