63400040075 has 6 divisors (see below), whose sum is σ = 78616049724. Its totient is φ = 50720032040.

The previous prime is 63400040071. The next prime is 63400040083. The reversal of 63400040075 is 57004000436.

It is not a de Polignac number, because 63400040075 - 2² = 63400040071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63400040071) 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, 1268000777 + ... + 1268000826.

It is an arithmetic number, because the mean of its divisors is an integer number (13102674954).

Almost surely, 2^63400040075 is an apocalyptic number.

63400040075 is a deficient number, since it is larger than the sum of its proper divisors (15216009649).

63400040075 is a wasteful number, since it uses less digits than its factorization.

63400040075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2536001613 (or 2536001608 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The spelling of 63400040075 in words is "sixty-three billion, four hundred million, forty thousand, seventy-five".