83557275538 has 32 divisors (see below), whose sum is σ = 138544369920. Its totient is φ = 37479858000.

The previous prime is 83557275523. The next prime is 83557275553.

83557275538 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (83557275523) and next prime (83557275553).

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, 434893 + ... + 596863.

It is an arithmetic number, because the mean of its divisors is an integer number (4329511560).

Almost surely, 2^83557275538 is an apocalyptic number.

83557275538 is a deficient number, since it is larger than the sum of its proper divisors (54987094382).

83557275538 is a wasteful number, since it uses less digits than its factorization.

83557275538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162294.

The product of its digits is 35280000, while the sum is 58.

The spelling of 83557275538 in words is "eighty-three billion, five hundred fifty-seven million, two hundred seventy-five thousand, five hundred thirty-eight".