37658895481 has 9 divisors (see below), whose sum is σ = 38563595919. Its totient is φ = 36774956736.

The previous prime is 37658895433. The next prime is 37658895503. The reversal of 37658895481 is 18459885673.

The square root of 37658895481 is 194059.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 16687225 + 37642208256 = 4085^2 + 194016^2 .

It is not a de Polignac number, because 37658895481 - 2⁷ = 37658895353 is a prime.

It is a super-2 number, since 2×37658895481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37658835481) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8342281 + ... + 8346793.

It is an arithmetic number, because the mean of its divisors is an integer number (4284843991).

Almost surely, 2^37658895481 is an apocalyptic number.

37658895481 is the 194059-th square number.

37658895481 is the 97030-th centered octagonal number.

It is an amenable number.

37658895481 is a deficient number, since it is larger than the sum of its proper divisors (904700438).

37658895481 is an frugal number, since it uses more digits than its factorization.

37658895481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9112 (or 4556 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 64.

Multiplying 37658895481 by its sum of digits (64), we get a square (2410169310784 = 1552472²).

The spelling of 37658895481 in words is "thirty-seven billion, six hundred fifty-eight million, eight hundred ninety-five thousand, four hundred eighty-one".