405457245157 has 4 divisors (see below), whose sum is σ = 405471366496. Its totient is φ = 405443123820.

The previous prime is 405457245143. The next prime is 405457245199. The reversal of 405457245157 is 751542754504.

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 405457245157 - 2¹¹ = 405457243109 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 405457245157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405457245107) 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, 7017513 + ... + 7075054.

It is an arithmetic number, because the mean of its divisors is an integer number (101367841624).

Almost surely, 2^405457245157 is an apocalyptic number.

It is an amenable number.

405457245157 is a deficient number, since it is larger than the sum of its proper divisors (14121339).

405457245157 is a wasteful number, since it uses less digits than its factorization.

405457245157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14121338.

The product of its (nonzero) digits is 3920000, while the sum is 49.

The spelling of 405457245157 in words is "four hundred five billion, four hundred fifty-seven million, two hundred forty-five thousand, one hundred fifty-seven".