40446091178988 has 48 divisors (see below), whose sum is σ = 102957711701376. Its totient is φ = 12255912092160.

The previous prime is 40446091178887. The next prime is 40446091179017. The reversal of 40446091178988 is 88987119064404.

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, 2593306 + ... + 9360417.

It is an arithmetic number, because the mean of its divisors is an integer number (2144952327112).

Almost surely, 2^{40446091178988} is an apocalyptic number.

It is an amenable number.

40446091178988 is an abundant number, since it is smaller than the sum of its proper divisors (62511620522388).

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

40446091178988 is a wasteful number, since it uses less digits than its factorization.

40446091178988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11979374 (or 11979372 counting only the distinct ones).

The product of its (nonzero) digits is 111476736, while the sum is 69.

The spelling of 40446091178988 in words is "forty trillion, four hundred forty-six billion, ninety-one million, one hundred seventy-eight thousand, nine hundred eighty-eight".