3257479136971 has 2 divisors, whose sum is σ = 3257479136972. Its totient is φ = 3257479136970.

The previous prime is 3257479136959. The next prime is 3257479137013. The reversal of 3257479136971 is 1796319747523.

3257479136971 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3257479136971 is a prime.

It is a super-2 number, since 2×3257479136971² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3257479136941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1628739568485 + 1628739568486.

It is an arithmetic number, because the mean of its divisors is an integer number (1628739568486).

Almost surely, 2^{3257479136971} is an apocalyptic number.

3257479136971 is a deficient number, since it is larger than the sum of its proper divisors (1).

3257479136971 is an equidigital number, since it uses as much as digits as its factorization.

3257479136971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60011280, while the sum is 64.

The spelling of 3257479136971 in words is "three trillion, two hundred fifty-seven billion, four hundred seventy-nine million, one hundred thirty-six thousand, nine hundred seventy-one".