83915220127 has 4 divisors (see below), whose sum is σ = 88331810680. Its totient is φ = 79498629576.

The previous prime is 83915220119. The next prime is 83915220143. The reversal of 83915220127 is 72102251938.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83915220127 - 2³ = 83915220119 is a prime.

It is a super-2 number, since 2×83915220127² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83915220127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83915220427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2208295248 + ... + 2208295285.

It is an arithmetic number, because the mean of its divisors is an integer number (22082952670).

Almost surely, 2^83915220127 is an apocalyptic number.

83915220127 is a deficient number, since it is larger than the sum of its proper divisors (4416590553).

83915220127 is a wasteful number, since it uses less digits than its factorization.

83915220127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4416590552.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 83915220127 in words is "eighty-three billion, nine hundred fifteen million, two hundred twenty thousand, one hundred twenty-seven".