977839321452 has 96 divisors (see below), whose sum is σ = 2668641292800. Its totient is φ = 272915123712.

The previous prime is 977839321451. The next prime is 977839321681. The reversal of 977839321452 is 254123938779.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (977839321451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167427 + ... + 1408442.

It is an arithmetic number, because the mean of its divisors is an integer number (27798346800).

Almost surely, 2^977839321452 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 977839321452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1334320646400).

977839321452 is an abundant number, since it is smaller than the sum of its proper divisors (1690801971348).

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

977839321452 is a wasteful number, since it uses less digits than its factorization.

977839321452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576055 (or 1576053 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 60.

The spelling of 977839321452 in words is "nine hundred seventy-seven billion, eight hundred thirty-nine million, three hundred twenty-one thousand, four hundred fifty-two".