63315374373 has 12 divisors (see below), whose sum is σ = 91581348768. Its totient is φ = 42152184360.

The previous prime is 63315374357. The next prime is 63315374429. The reversal of 63315374373 is 37347351336.

63315374373 is a `hidden beast` number, since 6 + 3 + 3 + 1 + 537 + 43 + 73 = 666.

It is not a de Polignac number, because 63315374373 - 2⁴ = 63315374357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63315370373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4831863 + ... + 4844948.

It is an arithmetic number, because the mean of its divisors is an integer number (7631779064).

Almost surely, 2^63315374373 is an apocalyptic number.

It is an amenable number.

63315374373 is a deficient number, since it is larger than the sum of its proper divisors (28265974395).

63315374373 is a wasteful number, since it uses less digits than its factorization.

63315374373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9677544 (or 9677541 counting only the distinct ones).

The product of its digits is 1428840, while the sum is 45.

The spelling of 63315374373 in words is "sixty-three billion, three hundred fifteen million, three hundred seventy-four thousand, three hundred seventy-three".