83375551388 has 24 divisors (see below), whose sum is σ = 146091388800. Its totient is φ = 41635192320.

The previous prime is 83375551339. The next prime is 83375551453. The reversal of 83375551388 is 88315557338.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16596245 + ... + 16601267.

It is an arithmetic number, because the mean of its divisors is an integer number (6087141200).

Almost surely, 2^83375551388 is an apocalyptic number.

It is an amenable number.

83375551388 is a deficient number, since it is larger than the sum of its proper divisors (62715837412).

83375551388 is a wasteful number, since it uses less digits than its factorization.

83375551388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9437 (or 9435 counting only the distinct ones).

The product of its digits is 12096000, while the sum is 56.

The spelling of 83375551388 in words is "eighty-three billion, three hundred seventy-five million, five hundred fifty-one thousand, three hundred eighty-eight".