40605257357 has 4 divisors (see below), whose sum is σ = 46406008416. Its totient is φ = 34804506300.

The previous prime is 40605257293. The next prime is 40605257369. The reversal of 40605257357 is 75375250604.

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 40605257357 - 2⁶ = 40605257293 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 (40605257387) 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, 2900375519 + ... + 2900375532.

It is an arithmetic number, because the mean of its divisors is an integer number (11601502104).

Almost surely, 2^40605257357 is an apocalyptic number.

It is an amenable number.

40605257357 is a deficient number, since it is larger than the sum of its proper divisors (5800751059).

40605257357 is an equidigital number, since it uses as much as digits as its factorization.

40605257357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5800751058.

The product of its (nonzero) digits is 882000, while the sum is 44.

The spelling of 40605257357 in words is "forty billion, six hundred five million, two hundred fifty-seven thousand, three hundred fifty-seven".