40048177638668 has 12 divisors (see below), whose sum is σ = 70087897163760. Its totient is φ = 20023064163312.

The previous prime is 40048177638647. The next prime is 40048177638697. The reversal of 40048177638668 is 86683677184004.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40048177638598 and 40048177638607.

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, 256076063 + ... + 256232406.

It is an arithmetic number, because the mean of its divisors is an integer number (5840658096980).

Almost surely, 2^{40048177638668} is an apocalyptic number.

It is an amenable number.

40048177638668 is a deficient number, since it is larger than the sum of its proper divisors (30039719525092).

40048177638668 is a wasteful number, since it uses less digits than its factorization.

40048177638668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512328016 (or 512328014 counting only the distinct ones).

The product of its (nonzero) digits is 260112384, while the sum is 68.

The spelling of 40048177638668 in words is "forty trillion, forty-eight billion, one hundred seventy-seven million, six hundred thirty-eight thousand, six hundred sixty-eight".