37479798409 has 3 divisors (see below), whose sum is σ = 37479992007. Its totient is φ = 37479604812.

The previous prime is 37479798407. The next prime is 37479798431. The reversal of 37479798409 is 90489797473.

The square root of 37479798409 is 193597.

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

37479798409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 22259148025 + 15220650384 = 149195^2 + 123372^2 .

It is not a de Polignac number, because 37479798409 - 2¹ = 37479798407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37479798407) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 96799 + ... + 290395.

It is an arithmetic number, because the mean of its divisors is an integer number (12493330669).

Almost surely, 2^37479798409 is an apocalyptic number.

37479798409 is the 193597-th square number.

37479798409 is the 96799-th centered octagonal number.

It is an amenable number.

37479798409 is a deficient number, since it is larger than the sum of its proper divisors (193598).

37479798409 is an frugal number, since it uses more digits than its factorization.

37479798409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387194 (or 193597 counting only the distinct ones).

The product of its (nonzero) digits is 96018048, while the sum is 67.

The spelling of 37479798409 in words is "thirty-seven billion, four hundred seventy-nine million, seven hundred ninety-eight thousand, four hundred nine".