63406172088 has 480 divisors, whose sum is σ = 218894227200. Its totient is φ = 17050061952.

The previous prime is 63406172033. The next prime is 63406172191. The reversal of 63406172088 is 88027160436.

63406172088 is a `hidden beast` number, since 6 + 3 + 4 + 0 + 617 + 20 + 8 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 136946145 + ... + 136946607.

It is an arithmetic number, because the mean of its divisors is an integer number (456029640).

Almost surely, 2^63406172088 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 63406172088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109447113600).

63406172088 is an abundant number, since it is smaller than the sum of its proper divisors (155488055112).

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

63406172088 is a wasteful number, since it uses less digits than its factorization.

63406172088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 63406172088 in words is "sixty-three billion, four hundred six million, one hundred seventy-two thousand, eighty-eight".