83855120735 has 16 divisors (see below), whose sum is σ = 102789475200. Its totient is φ = 65642497536.

The previous prime is 83855120711. The next prime is 83855120743. The reversal of 83855120735 is 53702155838.

It is a cyclic number.

It is not a de Polignac number, because 83855120735 - 2³⁴ = 66675251551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a self number, because there is not a number n which added to its sum of digits gives 83855120735.

It is a congruent number.

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, 1117271 + ... + 1189959.

It is an arithmetic number, because the mean of its divisors is an integer number (6424342200).

Almost surely, 2^83855120735 is an apocalyptic number.

83855120735 is a deficient number, since it is larger than the sum of its proper divisors (18934354465).

83855120735 is a wasteful number, since it uses less digits than its factorization.

83855120735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77650.

The product of its (nonzero) digits is 1008000, while the sum is 47.

The spelling of 83855120735 in words is "eighty-three billion, eight hundred fifty-five million, one hundred twenty thousand, seven hundred thirty-five".