2772137985 has 32 divisors (see below), whose sum is σ = 4663630080. Its totient is φ = 1404076800.

The previous prime is 2772137971. The next prime is 2772137993. The reversal of 2772137985 is 5897312772.

It is not a de Polignac number, because 2772137985 - 2¹⁹ = 2771613697 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25701 + ... + 78770.

It is an arithmetic number, because the mean of its divisors is an integer number (145738440).

Almost surely, 2^2772137985 is an apocalyptic number.

It is an amenable number.

2772137985 is a deficient number, since it is larger than the sum of its proper divisors (1891492095).

2772137985 is a wasteful number, since it uses less digits than its factorization.

2772137985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104569.

The product of its digits is 1481760, while the sum is 51.

The square root of 2772137985 is about 52651.0967122243. The cubic root of 2772137985 is about 1404.7691071633.

The spelling of 2772137985 in words is "two billion, seven hundred seventy-two million, one hundred thirty-seven thousand, nine hundred eighty-five".