63645373092 has 192 divisors, whose sum is σ = 184872167424. Its totient is φ = 16629442560.

The previous prime is 63645373061. The next prime is 63645373117. The reversal of 63645373092 is 29037354636.

63645373092 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7225563 + ... + 7234365.

It is an arithmetic number, because the mean of its divisors is an integer number (962875872).

Almost surely, 2^63645373092 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 63645373092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92436083712).

63645373092 is an abundant number, since it is smaller than the sum of its proper divisors (121226794332).

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

63645373092 is a wasteful number, since it uses less digits than its factorization.

63645373092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8978 (or 8976 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 48.

The spelling of 63645373092 in words is "sixty-three billion, six hundred forty-five million, three hundred seventy-three thousand, ninety-two".