64286744907 has 16 divisors (see below), whose sum is σ = 106866277632. Its totient is φ = 33395711520.

The previous prime is 64286744861. The next prime is 64286744917. The reversal of 64286744907 is 70944768246.

It is a happy number.

It is not a de Polignac number, because 64286744907 - 2⁷ = 64286744779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64286744917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139148568 + ... + 139149029.

It is an arithmetic number, because the mean of its divisors is an integer number (6679142352).

Almost surely, 2^64286744907 is an apocalyptic number.

64286744907 is a deficient number, since it is larger than the sum of its proper divisors (42579532725).

64286744907 is a wasteful number, since it uses less digits than its factorization.

64286744907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278297618.

The product of its (nonzero) digits is 16257024, while the sum is 57.

The spelling of 64286744907 in words is "sixty-four billion, two hundred eighty-six million, seven hundred forty-four thousand, nine hundred seven".