40456639640632 has 32 divisors (see below), whose sum is σ = 76362071356800. Its totient is φ = 20093432940000.

The previous prime is 40456639640491. The next prime is 40456639640647. The reversal of 40456639640632 is 23604693665404.

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, 25878219 + ... + 27396997.

It is an arithmetic number, because the mean of its divisors is an integer number (2386314729900).

Almost surely, 2^{40456639640632} is an apocalyptic number.

It is an amenable number.

40456639640632 is a deficient number, since it is larger than the sum of its proper divisors (35905431716168).

40456639640632 is a wasteful number, since it uses less digits than its factorization.

40456639640632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540987 (or 1540983 counting only the distinct ones).

The product of its (nonzero) digits is 67184640, while the sum is 58.

The spelling of 40456639640632 in words is "forty trillion, four hundred fifty-six billion, six hundred thirty-nine million, six hundred forty thousand, six hundred thirty-two".