40729018256 has 20 divisors (see below), whose sum is σ = 78931666800. Its totient is φ = 20359555872.

The previous prime is 40729018243. The next prime is 40729018301. The reversal of 40729018256 is 65281092704.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241286 + ... + 373733.

It is an arithmetic number, because the mean of its divisors is an integer number (3946583340).

Almost surely, 2^40729018256 is an apocalyptic number.

It is an amenable number.

40729018256 is a deficient number, since it is larger than the sum of its proper divisors (38202648544).

40729018256 is a wasteful number, since it uses less digits than its factorization.

40729018256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619166 (or 619160 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 40729018256 in words is "forty billion, seven hundred twenty-nine million, eighteen thousand, two hundred fifty-six".