63373909680 has 160 divisors (see below), whose sum is σ = 231128510400. Its totient is φ = 15905599488.

The previous prime is 63373909673. The next prime is 63373909741. The reversal of 63373909680 is 8690937336.

63373909680 is a `hidden beast` number, since 63 + 37 + 390 + 96 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 826215 + ... + 899654.

It is an arithmetic number, because the mean of its divisors is an integer number (1444553190).

Almost surely, 2^63373909680 is an apocalyptic number.

63373909680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63373909680 is an abundant number, since it is smaller than the sum of its proper divisors (167754600720).

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

63373909680 is a wasteful number, since it uses less digits than its factorization.

63373909680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725908 (or 1725896 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 54.

The spelling of 63373909680 in words is "sixty-three billion, three hundred seventy-three million, nine hundred nine thousand, six hundred eighty".