40123565344 has 48 divisors (see below), whose sum is σ = 79808633856. Its totient is φ = 19855072000.

The previous prime is 40123565269. The next prime is 40123565347. The reversal of 40123565344 is 44356532104.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (40123565347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3935934 + ... + 3946114.

It is an arithmetic number, because the mean of its divisors is an integer number (1662679872).

Almost surely, 2^40123565344 is an apocalyptic number.

It is an amenable number.

40123565344 is a deficient number, since it is larger than the sum of its proper divisors (39685068512).

40123565344 is a wasteful number, since it uses less digits than its factorization.

40123565344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11449 (or 11441 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 40123565344 in words is "forty billion, one hundred twenty-three million, five hundred sixty-five thousand, three hundred forty-four".