264356866402238 has 64 divisors (see below), whose sum is σ = 423041470200000. Its totient is φ = 123462331238400.

The previous prime is 264356866402217. The next prime is 264356866402261. The reversal of 264356866402238 is 832204668653462.

It is a super-2 number, since 2×264356866402238² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45983101388 + ... + 45983107136.

It is an arithmetic number, because the mean of its divisors is an integer number (6610022971875).

Almost surely, 2^{264356866402238} is an apocalyptic number.

264356866402238 is a deficient number, since it is larger than the sum of its proper divisors (158684603797762).

264356866402238 is a wasteful number, since it uses less digits than its factorization.

264356866402238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12125.

The product of its (nonzero) digits is 477757440, while the sum is 65.

The spelling of 264356866402238 in words is "two hundred sixty-four trillion, three hundred fifty-six billion, eight hundred sixty-six million, four hundred two thousand, two hundred thirty-eight".