64265637669 has 16 divisors (see below), whose sum is σ = 85914941184. Its totient is φ = 42730200000.

The previous prime is 64265637649. The next prime is 64265637707. The reversal of 64265637669 is 96673656246.

It is not a de Polignac number, because 64265637669 - 2⁸ = 64265637413 is a prime.

It is a super-2 number, since 2×64265637669² (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 (64265637629) 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, 1723119 + ... + 1760019.

It is an arithmetic number, because the mean of its divisors is an integer number (5369683824).

Almost surely, 2^64265637669 is an apocalyptic number.

It is an amenable number.

64265637669 is a deficient number, since it is larger than the sum of its proper divisors (21649303515).

64265637669 is a wasteful number, since it uses less digits than its factorization.

64265637669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38428.

The product of its digits is 58786560, while the sum is 60.

The spelling of 64265637669 in words is "sixty-four billion, two hundred sixty-five million, six hundred thirty-seven thousand, six hundred sixty-nine".