37931383449 has 12 divisors (see below), whose sum is σ = 54811927716. Its totient is φ = 25277365152.

The previous prime is 37931383439. The next prime is 37931383463. The reversal of 37931383449 is 94438313973.

37931383449 is a `hidden beast` number, since 37 + 93 + 1 + 3 + 83 + 449 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10028019600 + 27903363849 = 100140^2 + 167043^2 .

It is not a de Polignac number, because 37931383449 - 2¹⁶ = 37931317913 is a prime.

It is a super-2 number, since 2×37931383449² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 37931383395 and 37931383404.

It is not an unprimeable number, because it can be changed into a prime (37931383429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 828454 + ... + 873039.

It is an arithmetic number, because the mean of its divisors is an integer number (4567660643).

Almost surely, 2^37931383449 is an apocalyptic number.

It is an amenable number.

37931383449 is a deficient number, since it is larger than the sum of its proper divisors (16880544267).

37931383449 is a wasteful number, since it uses less digits than its factorization.

37931383449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703976 (or 1703973 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 54.

The spelling of 37931383449 in words is "thirty-seven billion, nine hundred thirty-one million, three hundred eighty-three thousand, four hundred forty-nine".