83557379274 has 16 divisors (see below), whose sum is σ = 167130558912. Its totient is φ = 27849826368.

The previous prime is 83557379273. The next prime is 83557379291. The reversal of 83557379274 is 47297375538.

It is a super-2 number, since 2×83557379274² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83557379273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 589039 + ... + 716994.

It is an arithmetic number, because the mean of its divisors is an integer number (10445659932).

Almost surely, 2^83557379274 is an apocalyptic number.

83557379274 is an abundant number, since it is smaller than the sum of its proper divisors (83573179638).

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

83557379274 is a wasteful number, since it uses less digits than its factorization.

83557379274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316701.

The product of its digits is 44452800, while the sum is 60.

The spelling of 83557379274 in words is "eighty-three billion, five hundred fifty-seven million, three hundred seventy-nine thousand, two hundred seventy-four".