37820285672 has 32 divisors (see below), whose sum is σ = 78230524680. Its totient is φ = 17029770240.

The previous prime is 37820285653. The next prime is 37820285689. The reversal of 37820285672 is 27658202873.

It can be written as a sum of positive squares in 4 ways, for example, as 12699937636 + 25120348036 = 112694^2 + 158494^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 37820285672.

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, 4430573 + ... + 4439100.

Almost surely, 2^37820285672 is an apocalyptic number.

It is an amenable number.

37820285672 is an abundant number, since it is smaller than the sum of its proper divisors (40410239008).

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

37820285672 is a wasteful number, since it uses less digits than its factorization.

37820285672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8869733 (or 8869729 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 37820285672 in words is "thirty-seven billion, eight hundred twenty million, two hundred eighty-five thousand, six hundred seventy-two".