40045313361325 has 6 divisors (see below), whose sum is σ = 49656188568074. Its totient is φ = 32036250689040.

The previous prime is 40045313361323. The next prime is 40045313361377. The reversal of 40045313361325 is 52316331354004.

It can be written as a sum of positive squares in 3 ways, for example, as 14173553389284 + 25871759972041 = 3764778^2 + 5086429^2 .

It is not a de Polignac number, because 40045313361325 - 2¹ = 40045313361323 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 (40045313361323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 800906267202 + ... + 800906267251.

Almost surely, 2^{40045313361325} is an apocalyptic number.

It is an amenable number.

40045313361325 is a deficient number, since it is larger than the sum of its proper divisors (9610875206749).

40045313361325 is a wasteful number, since it uses less digits than its factorization.

40045313361325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601812534463 (or 1601812534458 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 40.

The spelling of 40045313361325 in words is "forty trillion, forty-five billion, three hundred thirteen million, three hundred sixty-one thousand, three hundred twenty-five".