83921719798 has 32 divisors (see below), whose sum is σ = 150206063616. Its totient is φ = 34383162528.

The previous prime is 83921719787. The next prime is 83921719859. The reversal of 83921719798 is 89791712938.

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, 501040 + ... + 647212.

It is an arithmetic number, because the mean of its divisors is an integer number (4693939488).

Almost surely, 2^83921719798 is an apocalyptic number.

83921719798 is a deficient number, since it is larger than the sum of its proper divisors (66284343818).

83921719798 is a wasteful number, since it uses less digits than its factorization.

83921719798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147988.

The product of its digits is 13716864, while the sum is 64.

The spelling of 83921719798 in words is "eighty-three billion, nine hundred twenty-one million, seven hundred nineteen thousand, seven hundred ninety-eight".