64441712730 has 32 divisors (see below), whose sum is σ = 154714906944. Its totient is φ = 17178368256.

The previous prime is 64441712689. The next prime is 64441712743. The reversal of 64441712730 is 3721714446.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294124 + ... + 464103.

It is an arithmetic number, because the mean of its divisors is an integer number (4834840842).

Almost surely, 2^64441712730 is an apocalyptic number.

64441712730 is an abundant number, since it is smaller than the sum of its proper divisors (90273194214).

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

64441712730 is a wasteful number, since it uses less digits than its factorization.

64441712730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761070.

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 64441712730 in words is "sixty-four billion, four hundred forty-one million, seven hundred twelve thousand, seven hundred thirty".