83642972452 has 24 divisors (see below), whose sum is σ = 165931404800. Its totient is φ = 36572635296.

The previous prime is 83642972443. The next prime is 83642972477. The reversal of 83642972452 is 25427924638.

It is a super-3 number, since 3×83642972452³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 83642972452.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42328452 + ... + 42330427.

Almost surely, 2^83642972452 is an apocalyptic number.

It is an amenable number.

83642972452 is a deficient number, since it is larger than the sum of its proper divisors (82288432348).

83642972452 is a wasteful number, since it uses less digits than its factorization.

83642972452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84658915 (or 84658913 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 52.

The spelling of 83642972452 in words is "eighty-three billion, six hundred forty-two million, nine hundred seventy-two thousand, four hundred fifty-two".