40721170600 has 72 divisors (see below), whose sum is σ = 104066210430. Its totient is φ = 14807689600.

The previous prime is 40721170591. The next prime is 40721170631. The reversal of 40721170600 is 607112704.

It can be written as a sum of positive squares in 3 ways, for example, as 39702156516 + 1019014084 = 199254^2 + 31922^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 817147 + ... + 865546.

Almost surely, 2^40721170600 is an apocalyptic number.

40721170600 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40721170600 is an abundant number, since it is smaller than the sum of its proper divisors (63345039830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40721170600 is a wasteful number, since it uses less digits than its factorization.

40721170600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682731 (or 1682711 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The spelling of 40721170600 in words is "forty billion, seven hundred twenty-one million, one hundred seventy thousand, six hundred".