83111708628072 has 24 divisors (see below), whose sum is σ = 225094210867890. Its totient is φ = 27703902876000.

The previous prime is 83111708628049. The next prime is 83111708628107. The reversal of 83111708628072 is 27082680711138.

83111708628072 is a `hidden beast` number, since 8 + 3 + 1 + 1 + 1 + 7 + 0 + 8 + 628 + 0 + 7 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 75645010287396 + 7466698340676 = 8697414^2 + 2732526^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×83111708628072² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 577164643179 + ... + 577164643322.

Almost surely, 2^{83111708628072} is an apocalyptic number.

It is an amenable number.

83111708628072 is an abundant number, since it is smaller than the sum of its proper divisors (141982502239818).

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

83111708628072 is a wasteful number, since it uses less digits than its factorization.

83111708628072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154329286513 (or 1154329286506 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 54.

The spelling of 83111708628072 in words is "eighty-three trillion, one hundred eleven billion, seven hundred eight million, six hundred twenty-eight thousand, seventy-two".