63642012742 has 64 divisors (see below), whose sum is σ = 126869299200. Its totient is φ = 23193125280.

The previous prime is 63642012697. The next prime is 63642012769. The reversal of 63642012742 is 24721024636.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93493 + ... + 368815.

It is an arithmetic number, because the mean of its divisors is an integer number (1982332800).

Almost surely, 2^63642012742 is an apocalyptic number.

63642012742 is a deficient number, since it is larger than the sum of its proper divisors (63227286458).

63642012742 is a wasteful number, since it uses less digits than its factorization.

63642012742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275441.

The product of its (nonzero) digits is 96768, while the sum is 37.

The spelling of 63642012742 in words is "sixty-three billion, six hundred forty-two million, twelve thousand, seven hundred forty-two".