37806720804 has 36 divisors (see below), whose sum is σ = 95588411100. Its totient is φ = 12599415360.

The previous prime is 37806720803. The next prime is 37806720811. The reversal of 37806720804 is 40802760873.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15366081600 + 22440639204 = 123960^2 + 149802^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 37806720804.

It is not an unprimeable number, because it can be changed into a prime (37806720803) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 48334 + ... + 279194.

Almost surely, 2^37806720804 is an apocalyptic number.

It is an amenable number.

37806720804 is an abundant number, since it is smaller than the sum of its proper divisors (57781690296).

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

37806720804 is a wasteful number, since it uses less digits than its factorization.

37806720804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235420 (or 235415 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 37806720804 in words is "thirty-seven billion, eight hundred six million, seven hundred twenty thousand, eight hundred four".