83828199972 has 48 divisors (see below), whose sum is σ = 213408643392. Its totient is φ = 25399178880.

The previous prime is 83828199953. The next prime is 83828200031. The reversal of 83828199972 is 27999182838.

It is a super-2 number, since 2×83828199972² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

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, 1094598 + ... + 1168674.

It is an arithmetic number, because the mean of its divisors is an integer number (4446013404).

Almost surely, 2^83828199972 is an apocalyptic number.

It is an amenable number.

83828199972 is an abundant number, since it is smaller than the sum of its proper divisors (129580443420).

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

83828199972 is a wasteful number, since it uses less digits than its factorization.

83828199972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82668 (or 82666 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 66.

The spelling of 83828199972 in words is "eighty-three billion, eight hundred twenty-eight million, one hundred ninety-nine thousand, nine hundred seventy-two".