64861304370 has 16 divisors (see below), whose sum is σ = 155667130560. Its totient is φ = 17296347824.

The previous prime is 64861304311. The next prime is 64861304383. The reversal of 64861304370 is 7340316846.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1081021710 + ... + 1081021769.

It is an arithmetic number, because the mean of its divisors is an integer number (9729195660).

Almost surely, 2^64861304370 is an apocalyptic number.

64861304370 is an abundant number, since it is smaller than the sum of its proper divisors (90805826190).

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

64861304370 is a wasteful number, since it uses less digits than its factorization.

64861304370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162043489.

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 64861304370 in words is "sixty-four billion, eight hundred sixty-one million, three hundred four thousand, three hundred seventy".