64424509392 has 40 divisors (see below), whose sum is σ = 166441465120. Its totient is φ = 21473354880.

The previous prime is 64424509367. The next prime is 64424509399. The reversal of 64424509392 is 29390542446.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64424509399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 826167 + ... + 900777.

It is an arithmetic number, because the mean of its divisors is an integer number (4161036628).

Almost surely, 2^64424509392 is an apocalyptic number.

It is an amenable number.

64424509392 is an abundant number, since it is smaller than the sum of its proper divisors (102016955728).

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

64424509392 is a wasteful number, since it uses less digits than its factorization.

64424509392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92611 (or 92605 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 64424509392 in words is "sixty-four billion, four hundred twenty-four million, five hundred nine thousand, three hundred ninety-two".