64770264615 has 48 divisors (see below), whose sum is σ = 120606579072. Its totient is φ = 29595859776.

The previous prime is 64770264577. The next prime is 64770264701. The reversal of 64770264615 is 51646207746.

It is not a de Polignac number, because 64770264615 - 2⁶ = 64770264551 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1706272 + ... + 1743818.

It is an arithmetic number, because the mean of its divisors is an integer number (2512637064).

Almost surely, 2^64770264615 is an apocalyptic number.

64770264615 is a deficient number, since it is larger than the sum of its proper divisors (55836314457).

64770264615 is a wasteful number, since it uses less digits than its factorization.

64770264615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39916 (or 39909 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 48.

The spelling of 64770264615 in words is "sixty-four billion, seven hundred seventy million, two hundred sixty-four thousand, six hundred fifteen".