634465432240264 has 32 divisors (see below), whose sum is σ = 1221776690469120. Its totient is φ = 308658343421376.

The previous prime is 634465432240259. The next prime is 634465432240271. The reversal of 634465432240264 is 462042234564436.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223598377 + ... + 226418119.

It is an arithmetic number, because the mean of its divisors is an integer number (38180521577160).

Almost surely, 2^{634465432240264} is an apocalyptic number.

It is an amenable number.

634465432240264 is a deficient number, since it is larger than the sum of its proper divisors (587311258228856).

634465432240264 is a wasteful number, since it uses less digits than its factorization.

634465432240264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3579949 (or 3579945 counting only the distinct ones).

The product of its (nonzero) digits is 79626240, while the sum is 55.

The spelling of 634465432240264 in words is "six hundred thirty-four trillion, four hundred sixty-five billion, four hundred thirty-two million, two hundred forty thousand, two hundred sixty-four".