98642945791 has 64 divisors (see below), whose sum is σ = 120574379520. Its totient is φ = 79705866240.

The previous prime is 98642945783. The next prime is 98642945803. The reversal of 98642945791 is 19754924689.

It is not a de Polignac number, because 98642945791 - 2³ = 98642945783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98642945701) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 153888831 + ... + 153889471.

It is an arithmetic number, because the mean of its divisors is an integer number (1883974680).

Almost surely, 2^98642945791 is an apocalyptic number.

98642945791 is a deficient number, since it is larger than the sum of its proper divisors (21931433729).

98642945791 is a wasteful number, since it uses less digits than its factorization.

98642945791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304.

The product of its digits is 39191040, while the sum is 64.

The spelling of 98642945791 in words is "ninety-eight billion, six hundred forty-two million, nine hundred forty-five thousand, seven hundred ninety-one".