40401131457 has 4 divisors (see below), whose sum is σ = 53868175280. Its totient is φ = 26934087636.

The previous prime is 40401131453. The next prime is 40401131467. The reversal of 40401131457 is 75413110404.

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 not a de Polignac number, because 40401131457 - 2² = 40401131453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40401131453) 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, 6733521907 + ... + 6733521912.

It is an arithmetic number, because the mean of its divisors is an integer number (13467043820).

Almost surely, 2^40401131457 is an apocalyptic number.

It is an amenable number.

40401131457 is a deficient number, since it is larger than the sum of its proper divisors (13467043823).

40401131457 is a wasteful number, since it uses less digits than its factorization.

40401131457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13467043822.

The product of its (nonzero) digits is 6720, while the sum is 30.

The spelling of 40401131457 in words is "forty billion, four hundred one million, one hundred thirty-one thousand, four hundred fifty-seven".