83780474344 has 16 divisors (see below), whose sum is σ = 179529588000. Its totient is φ = 35905917552.

The previous prime is 83780474341. The next prime is 83780474359. The reversal of 83780474344 is 44347408738.

It is a junction number, because it is equal to n+sod(n) for n = 83780474291 and 83780474300.

It is not an unprimeable number, because it can be changed into a prime (83780474341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 748039894 + ... + 748040005.

It is an arithmetic number, because the mean of its divisors is an integer number (11220599250).

Almost surely, 2^83780474344 is an apocalyptic number.

It is an amenable number.

83780474344 is an abundant number, since it is smaller than the sum of its proper divisors (95749113656).

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

83780474344 is a wasteful number, since it uses less digits than its factorization.

83780474344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496079912 (or 1496079908 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 52.

The spelling of 83780474344 in words is "eighty-three billion, seven hundred eighty million, four hundred seventy-four thousand, three hundred forty-four".