2657928771 has 48 divisors (see below), whose sum is σ = 4059095040. Its totient is φ = 1673965440.

The previous prime is 2657928761. The next prime is 2657928787. The reversal of 2657928771 is 1778297562.

It is a happy number.

2657928771 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2657928771 - 2¹³ = 2657920579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2657928751) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2014450 + ... + 2015768.

It is an arithmetic number, because the mean of its divisors is an integer number (84564480).

Almost surely, 2^2657928771 is an apocalyptic number.

2657928771 is a deficient number, since it is larger than the sum of its proper divisors (1401166269).

2657928771 is a wasteful number, since it uses less digits than its factorization.

2657928771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536 (or 1533 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 54.

The square root of 2657928771 is about 51555.1042186901. The cubic root of 2657928771 is about 1385.2062617300.

The spelling of 2657928771 in words is "two billion, six hundred fifty-seven million, nine hundred twenty-eight thousand, seven hundred seventy-one".