64674967532 has 12 divisors (see below), whose sum is σ = 129349935120. Its totient is φ = 27717843216.

The previous prime is 64674967523. The next prime is 64674967537. The reversal of 64674967532 is 23576947646.

64674967532 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (64674967537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154910107 + ... + 1154910162.

It is an arithmetic number, because the mean of its divisors is an integer number (10779161260).

Almost surely, 2^64674967532 is an apocalyptic number.

It is an amenable number.

64674967532 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64674967532 is a wasteful number, since it uses less digits than its factorization.

64674967532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309820280 (or 2309820278 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 59.

The spelling of 64674967532 in words is "sixty-four billion, six hundred seventy-four million, nine hundred sixty-seven thousand, five hundred thirty-two".