40577970818 has 32 divisors (see below), whose sum is σ = 77937061248. Its totient is φ = 15382310400.

The previous prime is 40577970779. The next prime is 40577970821. The reversal of 40577970818 is 81807977504.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3555023 + ... + 3566418.

It is an arithmetic number, because the mean of its divisors is an integer number (2435533164).

Almost surely, 2^40577970818 is an apocalyptic number.

40577970818 is a deficient number, since it is larger than the sum of its proper divisors (37359090430).

40577970818 is a wasteful number, since it uses less digits than its factorization.

40577970818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7121498.

The product of its (nonzero) digits is 3951360, while the sum is 56.

The spelling of 40577970818 in words is "forty billion, five hundred seventy-seven million, nine hundred seventy thousand, eight hundred eighteen".