40029665972974 has 16 divisors (see below), whose sum is σ = 61509178313856. Its totient is φ = 19526609382400.

The previous prime is 40029665972953. The next prime is 40029665972981. The reversal of 40029665972974 is 47927956692004.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46784334 + ... + 47632270.

It is an arithmetic number, because the mean of its divisors is an integer number (3844323644616).

Almost surely, 2^{40029665972974} is an apocalyptic number.

40029665972974 is a deficient number, since it is larger than the sum of its proper divisors (21479512340882).

40029665972974 is a wasteful number, since it uses less digits than its factorization.

40029665972974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423691.

The product of its (nonzero) digits is 411505920, while the sum is 70.

The spelling of 40029665972974 in words is "forty trillion, twenty-nine billion, six hundred sixty-five million, nine hundred seventy-two thousand, nine hundred seventy-four".