83732379555 has 32 divisors (see below), whose sum is σ = 153843229440. Its totient is φ = 38460804480.

The previous prime is 83732379553. The next prime is 83732379569. The reversal of 83732379555 is 55597323738.

It is not a de Polignac number, because 83732379555 - 2¹ = 83732379553 is a prime.

It is a super-2 number, since 2×83732379555² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 83732379495 and 83732379504.

It is not an unprimeable number, because it can be changed into a prime (83732379553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13351312 + ... + 13357581.

It is an arithmetic number, because the mean of its divisors is an integer number (4807600920).

Almost surely, 2^83732379555 is an apocalyptic number.

83732379555 is a deficient number, since it is larger than the sum of its proper divisors (70110849885).

83732379555 is a wasteful number, since it uses less digits than its factorization.

83732379555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26708931.

The product of its digits is 23814000, while the sum is 57.

The spelling of 83732379555 in words is "eighty-three billion, seven hundred thirty-two million, three hundred seventy-nine thousand, five hundred fifty-five".