64268957948 has 36 divisors (see below), whose sum is σ = 123852050280. Its totient is φ = 29159822016.

The previous prime is 64268957933. The next prime is 64268957971. The reversal of 64268957948 is 84975986246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 765815 + ... + 845582.

It is an arithmetic number, because the mean of its divisors is an integer number (3440334730).

Almost surely, 2^64268957948 is an apocalyptic number.

It is an amenable number.

64268957948 is a deficient number, since it is larger than the sum of its proper divisors (59583092332).

64268957948 is a wasteful number, since it uses less digits than its factorization.

64268957948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611486 (or 1611471 counting only the distinct ones).

The product of its digits is 209018880, while the sum is 68.

The spelling of 64268957948 in words is "sixty-four billion, two hundred sixty-eight million, nine hundred fifty-seven thousand, nine hundred forty-eight".