63367765040 has 80 divisors (see below), whose sum is σ = 152156154240. Its totient is φ = 24528936960.

The previous prime is 63367765033. The next prime is 63367765057. The reversal of 63367765040 is 4056776336.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (47).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239960 + ... + 429320.

It is an arithmetic number, because the mean of its divisors is an integer number (1901951928).

Almost surely, 2^63367765040 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 63367765040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76078077120).

63367765040 is an abundant number, since it is smaller than the sum of its proper divisors (88788389200).

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

63367765040 is a wasteful number, since it uses less digits than its factorization.

63367765040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189510 (or 189504 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 47.

The spelling of 63367765040 in words is "sixty-three billion, three hundred sixty-seven million, seven hundred sixty-five thousand, forty".