978090377248 has 36 divisors (see below), whose sum is σ = 2012977979838. Its totient is φ = 467782346240.

The previous prime is 978090377227. The next prime is 978090377263. The reversal of 978090377248 is 842773090879.

It can be written as a sum of positive squares in only one way, i.e., 749311834384 + 228778542864 = 865628^2 + 478308^2 .

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 978090377248.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28872793 + ... + 28906648.

Almost surely, 2^978090377248 is an apocalyptic number.

It is an amenable number.

978090377248 is an abundant number, since it is smaller than the sum of its proper divisors (1034887602590).

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

978090377248 is a wasteful number, since it uses less digits than its factorization.

978090377248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57779497 (or 57779466 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 64.

The spelling of 978090377248 in words is "nine hundred seventy-eight billion, ninety million, three hundred seventy-seven thousand, two hundred forty-eight".