83388881331380 has 48 divisors (see below), whose sum is σ = 178424510264784. Its totient is φ = 32725510671360.

The previous prime is 83388881331373. The next prime is 83388881331403. The reversal of 83388881331380 is 8313318888338.

It can be written as a sum of positive squares in 8 ways, for example, as 235966663696 + 83152914667684 = 485764^2 + 9118822^2 .

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50849840 + ... + 52464120.

It is an arithmetic number, because the mean of its divisors is an integer number (3717177297183).

Almost surely, 2^{83388881331380} is an apocalyptic number.

It is an amenable number.

83388881331380 is an abundant number, since it is smaller than the sum of its proper divisors (95035628933404).

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

83388881331380 is a wasteful number, since it uses less digits than its factorization.

83388881331380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1663076 (or 1663074 counting only the distinct ones).

The product of its (nonzero) digits is 63700992, while the sum is 65.

The spelling of 83388881331380 in words is "eighty-three trillion, three hundred eighty-eight billion, eight hundred eighty-one million, three hundred thirty-one thousand, three hundred eighty".