97824797653 has 16 divisors (see below), whose sum is σ = 108018401472. Its totient is φ = 87851920000.

The previous prime is 97824797641. The next prime is 97824797663. The reversal of 97824797653 is 35679742879.

It is a cyclic number.

It is not a de Polignac number, because 97824797653 - 2¹⁷ = 97824666581 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 (97824797663) 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, 392793 + ... + 591553.

It is an arithmetic number, because the mean of its divisors is an integer number (6751150092).

Almost surely, 2^97824797653 is an apocalyptic number.

It is an amenable number.

97824797653 is a deficient number, since it is larger than the sum of its proper divisors (10193603819).

97824797653 is a wasteful number, since it uses less digits than its factorization.

97824797653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199316.

The product of its digits is 160030080, while the sum is 67.

The spelling of 97824797653 in words is "ninety-seven billion, eight hundred twenty-four million, seven hundred ninety-seven thousand, six hundred fifty-three".