63954191928 has 64 divisors (see below), whose sum is σ = 174489707520. Its totient is φ = 19372371200.

The previous prime is 63954191893. The next prime is 63954191953. The reversal of 63954191928 is 82919145936.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 637276 + ... + 730772.

It is an arithmetic number, because the mean of its divisors is an integer number (2726401680).

Almost surely, 2^63954191928 is an apocalyptic number.

It is an amenable number.

63954191928 is an abundant number, since it is smaller than the sum of its proper divisors (110535515592).

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

63954191928 is a wasteful number, since it uses less digits than its factorization.

63954191928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96108 (or 96104 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 57.

The spelling of 63954191928 in words is "sixty-three billion, nine hundred fifty-four million, one hundred ninety-one thousand, nine hundred twenty-eight".