83057901281 has 4 divisors (see below), whose sum is σ = 84109267200. Its totient is φ = 82006535364.

The previous prime is 83057901221. The next prime is 83057901287. The reversal of 83057901281 is 18210975038.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83057901281 is a prime.

It is a super-2 number, since 2×83057901281² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83057901287) 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, 525682841 + ... + 525682998.

It is an arithmetic number, because the mean of its divisors is an integer number (21027316800).

Almost surely, 2^83057901281 is an apocalyptic number.

It is an amenable number.

83057901281 is a deficient number, since it is larger than the sum of its proper divisors (1051365919).

83057901281 is a wasteful number, since it uses less digits than its factorization.

83057901281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051365918.

The product of its (nonzero) digits is 120960, while the sum is 44.

The spelling of 83057901281 in words is "eighty-three billion, fifty-seven million, nine hundred one thousand, two hundred eighty-one".