83407873920 has 128 divisors (see below), whose sum is σ = 303843018240. Its totient is φ = 19064653824.

The previous prime is 83407873897. The next prime is 83407873973. The reversal of 83407873920 is 2937870438.

It is a tau number, because it is divible by the number of its divisors (128).

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, 3089532 + ... + 3116411.

It is an arithmetic number, because the mean of its divisors is an integer number (2373773580).

Almost surely, 2^83407873920 is an apocalyptic number.

83407873920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

83407873920 is an abundant number, since it is smaller than the sum of its proper divisors (220435144320).

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

83407873920 is a wasteful number, since it uses less digits than its factorization.

83407873920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6205972 (or 6205960 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 83407873920 in words is "eighty-three billion, four hundred seven million, eight hundred seventy-three thousand, nine hundred twenty".