97638624507850 has 12 divisors (see below), whose sum is σ = 181607841584694. Its totient is φ = 39055449803120.

The previous prime is 97638624507839. The next prime is 97638624507863. The reversal of 97638624507850 is 5870542683679.

It can be written as a sum of positive squares in 3 ways, for example, as 41381829302641 + 56256795205209 = 6432871^2 + 7500453^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 97638624507850.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 976386245029 + ... + 976386245128.

Almost surely, 2^{97638624507850} is an apocalyptic number.

97638624507850 is a deficient number, since it is larger than the sum of its proper divisors (83969217076844).

97638624507850 is a wasteful number, since it uses less digits than its factorization.

97638624507850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952772490169 (or 1952772490164 counting only the distinct ones).

The product of its (nonzero) digits is 609638400, while the sum is 70.

The spelling of 97638624507850 in words is "ninety-seven trillion, six hundred thirty-eight billion, six hundred twenty-four million, five hundred seven thousand, eight hundred fifty".