64262391432 has 32 divisors (see below), whose sum is σ = 169111557600. Its totient is φ = 20293386624.

The previous prime is 64262391409. The next prime is 64262391443. The reversal of 64262391432 is 23419326246.

64262391432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70462693 + ... + 70463604.

It is an arithmetic number, because the mean of its divisors is an integer number (5284736175).

Almost surely, 2^64262391432 is an apocalyptic number.

It is an amenable number.

64262391432 is an abundant number, since it is smaller than the sum of its proper divisors (104849166168).

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

64262391432 is a wasteful number, since it uses less digits than its factorization.

64262391432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140926325 (or 140926321 counting only the distinct ones).

The product of its digits is 373248, while the sum is 42.

The spelling of 64262391432 in words is "sixty-four billion, two hundred sixty-two million, three hundred ninety-one thousand, four hundred thirty-two".