64434355260 has 96 divisors (see below), whose sum is σ = 196859980800. Its totient is φ = 15617091840.

The previous prime is 64434355243. The next prime is 64434355267. The reversal of 64434355260 is 6255343446.

It is a happy number.

It is a super-2 number, since 2×64434355260² (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 (64434355267) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4585926 + ... + 4599954.

It is an arithmetic number, because the mean of its divisors is an integer number (2050624800).

Almost surely, 2^64434355260 is an apocalyptic number.

64434355260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64434355260 is an abundant number, since it is smaller than the sum of its proper divisors (132425625540).

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

64434355260 is a wasteful number, since it uses less digits than its factorization.

64434355260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21011 (or 21009 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 42.

The spelling of 64434355260 in words is "sixty-four billion, four hundred thirty-four million, three hundred fifty-five thousand, two hundred sixty".