633257063940 has 48 divisors (see below), whose sum is σ = 1794482682048. Its totient is φ = 166833988224.

The previous prime is 633257063927. The next prime is 633257063953. The reversal of 633257063940 is 49360752336.

It is an interprime number because it is at equal distance from previous prime (633257063927) and next prime (633257063953).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 633257063940.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63575047 + ... + 63585006.

It is an arithmetic number, because the mean of its divisors is an integer number (37385055876).

Almost surely, 2^633257063940 is an apocalyptic number.

633257063940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

633257063940 is an abundant number, since it is smaller than the sum of its proper divisors (1161225618108).

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

633257063940 is a wasteful number, since it uses less digits than its factorization.

633257063940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127160148 (or 127160146 counting only the distinct ones).

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

The spelling of 633257063940 in words is "six hundred thirty-three billion, two hundred fifty-seven million, sixty-three thousand, nine hundred forty".