98990471824 has 20 divisors (see below), whose sum is σ = 191902025644. Its totient is φ = 49467368448.

The previous prime is 98990471819. The next prime is 98990471831. The reversal of 98990471824 is 42817409989.

It can be written as a sum of positive squares in 2 ways, for example, as 19703175424 + 79287296400 = 140368^2 + 281580^2 .

It is a super-2 number, since 2×98990471824² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1712397 + ... + 1769260.

Almost surely, 2^98990471824 is an apocalyptic number.

It is an amenable number.

98990471824 is a deficient number, since it is larger than the sum of its proper divisors (92911553820).

98990471824 is a wasteful number, since it uses less digits than its factorization.

98990471824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483442 (or 3483436 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 61.

The spelling of 98990471824 in words is "ninety-eight billion, nine hundred ninety million, four hundred seventy-one thousand, eight hundred twenty-four".