40576257630437 has 2 divisors, whose sum is σ = 40576257630438. Its totient is φ = 40576257630436.

The previous prime is 40576257630427. The next prime is 40576257630451. The reversal of 40576257630437 is 73403675267504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33462973908961 + 7113283721476 = 5784719^2 + 2667074^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40576257630437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40576257630427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20288128815218 + 20288128815219.

It is an arithmetic number, because the mean of its divisors is an integer number (20288128815219).

Almost surely, 2^{40576257630437} is an apocalyptic number.

It is an amenable number.

40576257630437 is a deficient number, since it is larger than the sum of its proper divisors (1).

40576257630437 is an equidigital number, since it uses as much as digits as its factorization.

40576257630437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88905600, while the sum is 59.

The spelling of 40576257630437 in words is "forty trillion, five hundred seventy-six billion, two hundred fifty-seven million, six hundred thirty thousand, four hundred thirty-seven".