63857939080 has 128 divisors (see below), whose sum is σ = 156859960320. Its totient is φ = 23255147520.

The previous prime is 63857939053. The next prime is 63857939107. The reversal of 63857939080 is 8093975836.

It is an interprime number because it is at equal distance from previous prime (63857939053) and next prime (63857939107).

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42770814 + ... + 42772306.

It is an arithmetic number, because the mean of its divisors is an integer number (1225468440).

Almost surely, 2^63857939080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63857939080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78429980160).

63857939080 is an abundant number, since it is smaller than the sum of its proper divisors (93002021240).

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

63857939080 is a wasteful number, since it uses less digits than its factorization.

63857939080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591 (or 2587 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 63857939080 in words is "sixty-three billion, eight hundred fifty-seven million, nine hundred thirty-nine thousand, eighty".