7957656607345 has 16 divisors (see below), whose sum is σ = 9792359719632. Its totient is φ = 6204336624640.

The previous prime is 7957656607343. The next prime is 7957656607379. The reversal of 7957656607345 is 5437066567597.

It can be written as a sum of positive squares in 8 ways, for example, as 1266624197136 + 6691032410209 = 1125444^2 + 2586703^2 .

It is not a de Polignac number, because 7957656607345 - 2¹ = 7957656607343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7957656607343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20170762 + ... + 20561491.

It is an arithmetic number, because the mean of its divisors is an integer number (612022482477).

Almost surely, 2^{7957656607345} is an apocalyptic number.

It is an amenable number.

7957656607345 is a deficient number, since it is larger than the sum of its proper divisors (1834703112287).

7957656607345 is a wasteful number, since it uses less digits than its factorization.

7957656607345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40733252.

The product of its (nonzero) digits is 1000188000, while the sum is 70.

The spelling of 7957656607345 in words is "seven trillion, nine hundred fifty-seven billion, six hundred fifty-six million, six hundred seven thousand, three hundred forty-five".