978055926380 has 96 divisors (see below), whose sum is σ = 2264302227264. Its totient is φ = 352581755904.

The previous prime is 978055926347. The next prime is 978055926413. The reversal of 978055926380 is 83629550879.

978055926380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (978055926347) and next prime (978055926413).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28570154 + ... + 28604366.

It is an arithmetic number, because the mean of its divisors is an integer number (23586481534).

Almost surely, 2^978055926380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 978055926380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1132151113632).

978055926380 is an abundant number, since it is smaller than the sum of its proper divisors (1286246300884).

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

978055926380 is a wasteful number, since it uses less digits than its factorization.

978055926380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36835 (or 36833 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 62.

The spelling of 978055926380 in words is "nine hundred seventy-eight billion, fifty-five million, nine hundred twenty-six thousand, three hundred eighty".