63154400975 has 6 divisors (see below), whose sum is σ = 78311457240. Its totient is φ = 50523520760.

The previous prime is 63154400921. The next prime is 63154400977. The reversal of 63154400975 is 57900445136.

It is not a de Polignac number, because 63154400975 - 2⁸ = 63154400719 is a prime.

It is a super-2 number, since 2×63154400975² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63154400977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1263087995 + ... + 1263088044.

It is an arithmetic number, because the mean of its divisors is an integer number (13051909540).

Almost surely, 2^63154400975 is an apocalyptic number.

63154400975 is a deficient number, since it is larger than the sum of its proper divisors (15157056265).

63154400975 is a wasteful number, since it uses less digits than its factorization.

63154400975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526176049 (or 2526176044 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 44.

The spelling of 63154400975 in words is "sixty-three billion, one hundred fifty-four million, four hundred thousand, nine hundred seventy-five".