98642571904 has 16 divisors (see below), whose sum is σ = 196514498970. Its totient is φ = 49321285888.

The previous prime is 98642571899. The next prime is 98642571917. The reversal of 98642571904 is 40917524689.

It can be written as a sum of positive squares in only one way, i.e., 98169422400 + 473149504 = 313320^2 + 21752^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385322419 + ... + 385322674.

Almost surely, 2^98642571904 is an apocalyptic number.

It is an amenable number.

98642571904 is a deficient number, since it is larger than the sum of its proper divisors (97871927066).

98642571904 is an equidigital number, since it uses as much as digits as its factorization.

98642571904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770645107 (or 770645095 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 98642571904 in words is "ninety-eight billion, six hundred forty-two million, five hundred seventy-one thousand, nine hundred four".