40821671830 has 64 divisors (see below), whose sum is σ = 74961961920. Its totient is φ = 16003170304.

The previous prime is 40821671801. The next prime is 40821671843. The reversal of 40821671830 is 3817612804.

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, 72507129 + ... + 72507691.

It is an arithmetic number, because the mean of its divisors is an integer number (1171280655).

Almost surely, 2^40821671830 is an apocalyptic number.

40821671830 is a deficient number, since it is larger than the sum of its proper divisors (34140290090).

40821671830 is a wasteful number, since it uses less digits than its factorization.

40821671830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233.

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 40821671830 in words is "forty billion, eight hundred twenty-one million, six hundred seventy-one thousand, eight hundred thirty".