63402531464 has 32 divisors (see below), whose sum is σ = 119324106720. Its totient is φ = 31582989696.

The previous prime is 63402531391. The next prime is 63402531473. The reversal of 63402531464 is 46413520436.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2389052 + ... + 2415444.

It is an arithmetic number, because the mean of its divisors is an integer number (3728878335).

Almost surely, 2^63402531464 is an apocalyptic number.

It is an amenable number.

63402531464 is a deficient number, since it is larger than the sum of its proper divisors (55921575256).

63402531464 is a wasteful number, since it uses less digits than its factorization.

63402531464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27509 (or 27505 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 63402531464 in words is "sixty-three billion, four hundred two million, five hundred thirty-one thousand, four hundred sixty-four".