40407522252457 has 4 divisors (see below), whose sum is σ = 40463721866880. Its totient is φ = 40351322638036.

The previous prime is 40407522252421. The next prime is 40407522252511. The reversal of 40407522252457 is 75425222570404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40407522252457 - 2³¹ = 40405374768809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40407522252457.

It is not an unprimeable number, because it can be changed into a prime (40407523252457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28099806133 + ... + 28099807570.

It is an arithmetic number, because the mean of its divisors is an integer number (10115930466720).

Almost surely, 2^{40407522252457} is an apocalyptic number.

It is an amenable number.

40407522252457 is a deficient number, since it is larger than the sum of its proper divisors (56199614423).

40407522252457 is an equidigital number, since it uses as much as digits as its factorization.

40407522252457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56199614422.

The product of its (nonzero) digits is 6272000, while the sum is 49.

The spelling of 40407522252457 in words is "forty trillion, four hundred seven billion, five hundred twenty-two million, two hundred fifty-two thousand, four hundred fifty-seven".