40518992146 has 8 divisors (see below), whose sum is σ = 63977356080. Its totient is φ = 19193206788.

The previous prime is 40518992123. The next prime is 40518992147. The reversal of 40518992146 is 64129981504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40518992146.

It is not an unprimeable number, because it can be changed into a prime (40518992147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533144596 + ... + 533144671.

It is an arithmetic number, because the mean of its divisors is an integer number (7997169510).

Almost surely, 2^40518992146 is an apocalyptic number.

40518992146 is a deficient number, since it is larger than the sum of its proper divisors (23458363934).

40518992146 is a wasteful number, since it uses less digits than its factorization.

40518992146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066289288.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 40518992146 in words is "forty billion, five hundred eighteen million, nine hundred ninety-two thousand, one hundred forty-six".