56980187098 has 4 divisors (see below), whose sum is σ = 85470280650. Its totient is φ = 28490093548.

The previous prime is 56980187093. The next prime is 56980187111. The reversal of 56980187098 is 89078108965.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89078108965 = 5 ⋅17815621793.

It can be written as a sum of positive squares in only one way, i.e., 56850295489 + 129891609 = 238433^2 + 11397^2 .

It is not an unprimeable number, because it can be changed into a prime (56980187093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14245046773 + ... + 14245046776.

Almost surely, 2^56980187098 is an apocalyptic number.

56980187098 is a deficient number, since it is larger than the sum of its proper divisors (28490093552).

56980187098 is a wasteful number, since it uses less digits than its factorization.

56980187098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28490093551.

The product of its (nonzero) digits is 8709120, while the sum is 61.

The spelling of 56980187098 in words is "fifty-six billion, nine hundred eighty million, one hundred eighty-seven thousand, ninety-eight".