2507942473257 has 64 divisors (see below), whose sum is σ = 3703480462080. Its totient is φ = 1500111360000.

The previous prime is 2507942473237. The next prime is 2507942473279. The reversal of 2507942473257 is 7523742497052.

It is a happy number.

It is not a de Polignac number, because 2507942473257 - 2¹² = 2507942469161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2507942473197 and 2507942473206.

It is not an unprimeable number, because it can be changed into a prime (2507942473207) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 635402758 + ... + 635406704.

It is an arithmetic number, because the mean of its divisors is an integer number (57866882220).

Almost surely, 2^{2507942473257} is an apocalyptic number.

It is an amenable number.

2507942473257 is a deficient number, since it is larger than the sum of its proper divisors (1195537988823).

2507942473257 is a wasteful number, since it uses less digits than its factorization.

2507942473257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7114.

The product of its (nonzero) digits is 29635200, while the sum is 57.

The spelling of 2507942473257 in words is "two trillion, five hundred seven billion, nine hundred forty-two million, four hundred seventy-three thousand, two hundred fifty-seven".