978637587103 has 12 divisors (see below), whose sum is σ = 1075784226664. Its totient is φ = 889594714800.

The previous prime is 978637587071. The next prime is 978637587139. The reversal of 978637587103 is 301785736879.

It is not a de Polignac number, because 978637587103 - 2⁵ = 978637587071 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 (978637582103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1106200 + ... + 1783522.

Almost surely, 2^978637587103 is an apocalyptic number.

978637587103 is a deficient number, since it is larger than the sum of its proper divisors (97146639561).

978637587103 is a wasteful number, since it uses less digits than its factorization.

978637587103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689286 (or 689275 counting only the distinct ones).

The product of its (nonzero) digits is 53343360, while the sum is 64.

The spelling of 978637587103 in words is "nine hundred seventy-eight billion, six hundred thirty-seven million, five hundred eighty-seven thousand, one hundred three".