632537521872978 has 8 divisors (see below), whose sum is σ = 1265075043745968. Its totient is φ = 210845840624324.

The previous prime is 632537521872959. The next prime is 632537521872979. The reversal of 632537521872978 is 879278125735236.

It is a sphenic number, since it is the product of 3 distinct primes.

632537521872978 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (632537521872979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52711460156076 + ... + 52711460156087.

It is an arithmetic number, because the mean of its divisors is an integer number (158134380468246).

Almost surely, 2^{632537521872978} is an apocalyptic number.

632537521872978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

632537521872978 is a wasteful number, since it uses less digits than its factorization.

632537521872978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105422920312168.

The product of its digits is 2133734400, while the sum is 75.

The spelling of 632537521872978 in words is "six hundred thirty-two trillion, five hundred thirty-seven billion, five hundred twenty-one million, eight hundred seventy-two thousand, nine hundred seventy-eight".