40253751265 has 32 divisors (see below), whose sum is σ = 60168036096. Its totient is φ = 25172294400.

The previous prime is 40253751247. The next prime is 40253751269. The reversal of 40253751265 is 56215735204.

It is a de Polignac number, because none of the positive numbers 2^k-40253751265 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40253751269) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 495186 + ... + 570715.

It is an arithmetic number, because the mean of its divisors is an integer number (1880251128).

Almost surely, 2^40253751265 is an apocalyptic number.

It is an amenable number.

40253751265 is a deficient number, since it is larger than the sum of its proper divisors (19914284831).

40253751265 is a wasteful number, since it uses less digits than its factorization.

40253751265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066009.

The product of its (nonzero) digits is 252000, while the sum is 40.

The spelling of 40253751265 in words is "forty billion, two hundred fifty-three million, seven hundred fifty-one thousand, two hundred sixty-five".