2616792881 has 4 divisors (see below), whose sum is σ = 2770721892. Its totient is φ = 2462863872.

The previous prime is 2616792833. The next prime is 2616792889. The reversal of 2616792881 is 1882976162.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1002039025 + 1614753856 = 31655^2 + 40184^2 .

It is a cyclic number.

It is not a de Polignac number, because 2616792881 - 2⁶ = 2616792817 is a prime.

It is a super-2 number, since 2×2616792881² = 13695209964104560322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2616792889) 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, 76964480 + ... + 76964513.

It is an arithmetic number, because the mean of its divisors is an integer number (692680473).

Almost surely, 2^2616792881 is an apocalyptic number.

It is an amenable number.

2616792881 is a deficient number, since it is larger than the sum of its proper divisors (153929011).

2616792881 is a wasteful number, since it uses less digits than its factorization.

2616792881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153929010.

The product of its digits is 580608, while the sum is 50.

The square root of 2616792881 is about 51154.5978480918. The cubic root of 2616792881 is about 1378.0229480093.

The spelling of 2616792881 in words is "two billion, six hundred sixteen million, seven hundred ninety-two thousand, eight hundred eighty-one".