40457753994 has 32 divisors (see below), whose sum is σ = 97914566016. Its totient is φ = 10879395840.

The previous prime is 40457753993. The next prime is 40457754013. The reversal of 40457753994 is 49935775404.

It is a happy number.

40457753994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40457753993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28331047 + ... + 28332474.

It is an arithmetic number, because the mean of its divisors is an integer number (3059830188).

Almost surely, 2^40457753994 is an apocalyptic number.

40457753994 is an abundant number, since it is smaller than the sum of its proper divisors (57456812022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40457753994 is a wasteful number, since it uses less digits than its factorization.

40457753994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56663550.

The product of its (nonzero) digits is 19051200, while the sum is 57.

The spelling of 40457753994 in words is "forty billion, four hundred fifty-seven million, seven hundred fifty-three thousand, nine hundred ninety-four".