64436058708 has 96 divisors (see below), whose sum is σ = 176578714368. Its totient is φ = 17904307200.

The previous prime is 64436058619. The next prime is 64436058719. The reversal of 64436058708 is 80785063446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1062238 + ... + 1121258.

It is an arithmetic number, because the mean of its divisors is an integer number (1839361608).

Almost surely, 2^64436058708 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64436058708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88289357184).

64436058708 is an abundant number, since it is smaller than the sum of its proper divisors (112142655660).

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

64436058708 is a wasteful number, since it uses less digits than its factorization.

64436058708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59393 (or 59391 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 64436058708 in words is "sixty-four billion, four hundred thirty-six million, fifty-eight thousand, seven hundred eight".