98977422637 has 4 divisors (see below), whose sum is σ = 98982862236. Its totient is φ = 98971983040.

The previous prime is 98977422629. The next prime is 98977422647. The reversal of 98977422637 is 73622477989.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60302660356 + 38674762281 = 245566^2 + 196659^2 .

It is a cyclic number.

It is not a de Polignac number, because 98977422637 - 2³ = 98977422629 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 (98977422647) 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 3 ways as a sum of consecutive naturals, for example, 2692414 + ... + 2728927.

It is an arithmetic number, because the mean of its divisors is an integer number (24745715559).

Almost surely, 2^98977422637 is an apocalyptic number.

It is an amenable number.

98977422637 is a deficient number, since it is larger than the sum of its proper divisors (5439599).

98977422637 is a wasteful number, since it uses less digits than its factorization.

98977422637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5439598.

The product of its digits is 64012032, while the sum is 64.

The spelling of 98977422637 in words is "ninety-eight billion, nine hundred seventy-seven million, four hundred twenty-two thousand, six hundred thirty-seven".