64738934748 has 60 divisors (see below), whose sum is σ = 170458038520. Its totient is φ = 21424380768.

The previous prime is 64738934737. The next prime is 64738934749. The reversal of 64738934748 is 84743983746.

It is a happy number.

64738934748 is a `hidden beast` number, since 6 + 4 + 73 + 8 + 93 + 474 + 8 = 666.

It is a super-2 number, since 2×64738934748² (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 (64738934749) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 673711 + ... + 763782.

Almost surely, 2^64738934748 is an apocalyptic number.

It is an amenable number.

64738934748 is an abundant number, since it is smaller than the sum of its proper divisors (105719103772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64738934748 is a wasteful number, since it uses less digits than its factorization.

64738934748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437648 (or 1437637 counting only the distinct ones).

The product of its digits is 97542144, while the sum is 63.

The spelling of 64738934748 in words is "sixty-four billion, seven hundred thirty-eight million, nine hundred thirty-four thousand, seven hundred forty-eight".