63408891220902 has 160 divisors (see below), whose sum is σ = 151811240592000. Its totient is φ = 19722650694912.

The previous prime is 63408891220879. The next prime is 63408891221003. The reversal of 63408891220902 is 20902219880436.

63408891220902 is a `hidden beast` number, since 6 + 3 + 408 + 8 + 9 + 1 + 220 + 9 + 0 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2701342638 + ... + 2701366110.

It is an arithmetic number, because the mean of its divisors is an integer number (948820253700).

Almost surely, 2^{63408891220902} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63408891220902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75905620296000).

63408891220902 is an abundant number, since it is smaller than the sum of its proper divisors (88402349371098).

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

63408891220902 is a wasteful number, since it uses less digits than its factorization.

63408891220902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36672 (or 36663 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 63408891220902 in words is "sixty-three trillion, four hundred eight billion, eight hundred ninety-one million, two hundred twenty thousand, nine hundred two".