40250735641 has 4 divisors (see below), whose sum is σ = 40257537232. Its totient is φ = 40243934052.

The previous prime is 40250735639. The next prime is 40250735669. The reversal of 40250735641 is 14653705204.

40250735641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40250735641 - 2¹ = 40250735639 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 40250735641.

It is not an unprimeable number, because it can be changed into a prime (40250733641) 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, 3391911 + ... + 3403756.

It is an arithmetic number, because the mean of its divisors is an integer number (10064384308).

Almost surely, 2^40250735641 is an apocalyptic number.

It is an amenable number.

40250735641 is a deficient number, since it is larger than the sum of its proper divisors (6801591).

40250735641 is an equidigital number, since it uses as much as digits as its factorization.

40250735641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6801590.

The product of its (nonzero) digits is 100800, while the sum is 37.

The spelling of 40250735641 in words is "forty billion, two hundred fifty million, seven hundred thirty-five thousand, six hundred forty-one".