2657397013 has 4 divisors (see below), whose sum is σ = 2683197088. Its totient is φ = 2631596940.

The previous prime is 2657396953. The next prime is 2657397053. The reversal of 2657397013 is 3107937562.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3107937562 = 2 ⋅1553968781.

It is a cyclic number.

It is not a de Polignac number, because 2657397013 - 2²¹ = 2655299861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2657397053) 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, 12899883 + ... + 12900088.

It is an arithmetic number, because the mean of its divisors is an integer number (670799272).

Almost surely, 2^2657397013 is an apocalyptic number.

It is an amenable number.

2657397013 is a deficient number, since it is larger than the sum of its proper divisors (25800075).

2657397013 is a wasteful number, since it uses less digits than its factorization.

2657397013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25800074.

The product of its (nonzero) digits is 238140, while the sum is 43.

The square root of 2657397013 is about 51549.9467797979. The cubic root of 2657397013 is about 1385.1138785622.

The spelling of 2657397013 in words is "two billion, six hundred fifty-seven million, three hundred ninety-seven thousand, thirteen".