978620560919 has 8 divisors (see below), whose sum is σ = 981744304320. Its totient is φ = 975497048416.

The previous prime is 978620560877. The next prime is 978620560969. The reversal of 978620560919 is 919065026879.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-978620560919 is a prime.

It is a super-2 number, since 2×978620560919² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978620560969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13439042 + ... + 13511664.

It is an arithmetic number, because the mean of its divisors is an integer number (122718038040).

Almost surely, 2^978620560919 is an apocalyptic number.

978620560919 is a deficient number, since it is larger than the sum of its proper divisors (3123743401).

978620560919 is a wasteful number, since it uses less digits than its factorization.

978620560919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115449.

The product of its (nonzero) digits is 14696640, while the sum is 62.

The spelling of 978620560919 in words is "nine hundred seventy-eight billion, six hundred twenty million, five hundred sixty thousand, nine hundred nineteen".