40678868990 has 64 divisors (see below), whose sum is σ = 75145599936. Its totient is φ = 15849080832.

The previous prime is 40678868981. The next prime is 40678869029. The reversal of 40678868990 is 9986887604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68598134 + ... + 68598726.

It is an arithmetic number, because the mean of its divisors is an integer number (1174149999).

Almost surely, 2^40678868990 is an apocalyptic number.

40678868990 is a deficient number, since it is larger than the sum of its proper divisors (34466730946).

40678868990 is a wasteful number, since it uses less digits than its factorization.

40678868990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373.

The product of its (nonzero) digits is 41803776, while the sum is 65.

The spelling of 40678868990 in words is "forty billion, six hundred seventy-eight million, eight hundred sixty-eight thousand, nine hundred ninety".