64368788542 has 32 divisors (see below), whose sum is σ = 105822223200. Its totient is φ = 29228924928.

The previous prime is 64368788537. The next prime is 64368788557. The reversal of 64368788542 is 24588786346.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1679934 + ... + 1717822.

It is an arithmetic number, because the mean of its divisors is an integer number (3306944475).

Almost surely, 2^64368788542 is an apocalyptic number.

64368788542 is a deficient number, since it is larger than the sum of its proper divisors (41453434658).

64368788542 is a wasteful number, since it uses less digits than its factorization.

64368788542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39660.

The product of its digits is 61931520, while the sum is 61.

It can be divided in two parts, 6436 and 8788542, that added together give a palindrome (8794978).

The spelling of 64368788542 in words is "sixty-four billion, three hundred sixty-eight million, seven hundred eighty-eight thousand, five hundred forty-two".