2657497943 has 12 divisors (see below), whose sum is σ = 2728611720. Its totient is φ = 2588195520.

The previous prime is 2657497937. The next prime is 2657497949. The reversal of 2657497943 is 3497947562.

It is an interprime number because it is at equal distance from previous prime (2657497937) and next prime (2657497949).

It is not a de Polignac number, because 2657497943 - 2¹⁴ = 2657481559 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 (2657497949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1392596 + ... + 1394502.

It is an arithmetic number, because the mean of its divisors is an integer number (227384310).

Almost surely, 2^2657497943 is an apocalyptic number.

2657497943 is a deficient number, since it is larger than the sum of its proper divisors (71113777).

2657497943 is an equidigital number, since it uses as much as digits as its factorization.

2657497943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818 (or 2777 counting only the distinct ones).

The product of its digits is 11430720, while the sum is 56.

The square root of 2657497943 is about 51550.9257239868. The cubic root of 2657497943 is about 1385.1314142401.

The spelling of 2657497943 in words is "two billion, six hundred fifty-seven million, four hundred ninety-seven thousand, nine hundred forty-three".