63953921745294 has 64 divisors (see below), whose sum is σ = 154860406212096. Its totient is φ = 17188674683904.

The previous prime is 63953921745283. The next prime is 63953921745331. The reversal of 63953921745294 is 49254712935936.

63953921745294 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×63953921745294² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22123279 + ... + 24846474.

It is an arithmetic number, because the mean of its divisors is an integer number (2419693847064).

Almost surely, 2^{63953921745294} is an apocalyptic number.

63953921745294 is an abundant number, since it is smaller than the sum of its proper divisors (90906484466802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63953921745294 is a wasteful number, since it uses less digits than its factorization.

63953921745294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46971689.

The product of its digits is 440899200, while the sum is 69.

The spelling of 63953921745294 in words is "sixty-three trillion, nine hundred fifty-three billion, nine hundred twenty-one million, seven hundred forty-five thousand, two hundred ninety-four".