97754585621 has 16 divisors (see below), whose sum is σ = 121969221120. Its totient is φ = 76114045680.

The previous prime is 97754585611. The next prime is 97754585623. The reversal of 97754585621 is 12658545779.

It is a cyclic number.

It is not a de Polignac number, because 97754585621 - 2¹⁸ = 97754323477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97754585623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385031 + ... + 586308.

It is an arithmetic number, because the mean of its divisors is an integer number (7623076320).

Almost surely, 2^97754585621 is an apocalyptic number.

It is an amenable number.

97754585621 is a deficient number, since it is larger than the sum of its proper divisors (24214635499).

97754585621 is a wasteful number, since it uses less digits than its factorization.

97754585621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972664.

The product of its digits is 21168000, while the sum is 59.

The spelling of 97754585621 in words is "ninety-seven billion, seven hundred fifty-four million, five hundred eighty-five thousand, six hundred twenty-one".