2657396137 has 4 divisors (see below), whose sum is σ = 2898977616. Its totient is φ = 2415814660.

The previous prime is 2657396117. The next prime is 2657396141. The reversal of 2657396137 is 7316937562.

2657396137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 2657396137 - 2³¹ = 509912489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2657396117) 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, 120790723 + ... + 120790744.

It is an arithmetic number, because the mean of its divisors is an integer number (724744404).

Almost surely, 2^2657396137 is an apocalyptic number.

It is an amenable number.

2657396137 is a deficient number, since it is larger than the sum of its proper divisors (241581479).

2657396137 is a wasteful number, since it uses less digits than its factorization.

2657396137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241581478.

The product of its digits is 1428840, while the sum is 49.

The square root of 2657396137 is about 51549.9382831832. The cubic root of 2657396137 is about 1385.1137263632.

The spelling of 2657396137 in words is "two billion, six hundred fifty-seven million, three hundred ninety-six thousand, one hundred thirty-seven".