978124269276840 has 96 divisors (see below), whose sum is σ = 3413454082598880. Its totient is φ = 223571261547648.

The previous prime is 978124269276779. The next prime is 978124269276871. The reversal of 978124269276840 is 48672962421879.

It is a super-2 number, since 2×978124269276840² (a number of 31 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (75) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83173826542 + ... + 83173838301.

It is an arithmetic number, because the mean of its divisors is an integer number (35556813360405).

Almost surely, 2^{978124269276840} is an apocalyptic number.

It is an amenable number.

978124269276840 is an abundant number, since it is smaller than the sum of its proper divisors (2435329813322040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

978124269276840 is a wasteful number, since it uses less digits than its factorization.

978124269276840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166347664871 (or 166347664860 counting only the distinct ones).

The product of its (nonzero) digits is 1170505728, while the sum is 75.

The spelling of 978124269276840 in words is "nine hundred seventy-eight trillion, one hundred twenty-four billion, two hundred sixty-nine million, two hundred seventy-six thousand, eight hundred forty".