97790928613 has 12 divisors (see below), whose sum is σ = 113783846880. Its totient is φ = 83800862712.

The previous prime is 97790928611. The next prime is 97790928617. The reversal of 97790928613 is 31682909779.

It is not a de Polignac number, because 97790928613 - 2¹ = 97790928611 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 (97790928611) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 27273 + ... + 443086.

It is an arithmetic number, because the mean of its divisors is an integer number (9481987240).

Almost surely, 2^97790928613 is an apocalyptic number.

It is an amenable number.

97790928613 is a deficient number, since it is larger than the sum of its proper divisors (15992918267).

97790928613 is a wasteful number, since it uses less digits than its factorization.

97790928613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474616 (or 474609 counting only the distinct ones).

The product of its (nonzero) digits is 10287648, while the sum is 61.

The spelling of 97790928613 in words is "ninety-seven billion, seven hundred ninety million, nine hundred twenty-eight thousand, six hundred thirteen".