40448541157 has 4 divisors (see below), whose sum is σ = 40555265920. Its totient is φ = 40341816396.

The previous prime is 40448541127. The next prime is 40448541163. The reversal of 40448541157 is 75114584404.

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 40448541157 - 2²⁷ = 40314323429 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 (40448541127) 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, 53361813 + ... + 53362570.

It is an arithmetic number, because the mean of its divisors is an integer number (10138816480).

Almost surely, 2^40448541157 is an apocalyptic number.

It is an amenable number.

40448541157 is a deficient number, since it is larger than the sum of its proper divisors (106724763).

40448541157 is a wasteful number, since it uses less digits than its factorization.

40448541157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106724762.

The product of its (nonzero) digits is 358400, while the sum is 43.

The spelling of 40448541157 in words is "forty billion, four hundred forty-eight million, five hundred forty-one thousand, one hundred fifty-seven".