98939475784 has 16 divisors (see below), whose sum is σ = 185584333500. Its totient is φ = 49450320192.

The previous prime is 98939475781. The next prime is 98939475821. The reversal of 98939475784 is 48757493989.

It can be written as a sum of positive squares in 2 ways, for example, as 97232959684 + 1706516100 = 311822^2 + 41310^2 .

It is not an unprimeable number, because it can be changed into a prime (98939475781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2405547 + ... + 2446330.

Almost surely, 2^98939475784 is an apocalyptic number.

It is an amenable number.

98939475784 is a deficient number, since it is larger than the sum of its proper divisors (86644857716).

98939475784 is a wasteful number, since it uses less digits than its factorization.

98939475784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4854432 (or 4854428 counting only the distinct ones).

The product of its digits is 548674560, while the sum is 73.

The spelling of 98939475784 in words is "ninety-eight billion, nine hundred thirty-nine million, four hundred seventy-five thousand, seven hundred eighty-four".