37616990401 has 3 divisors (see below), whose sum is σ = 37617184353. Its totient is φ = 37616796450.

The previous prime is 37616990387. The next prime is 37616990441. The reversal of 37616990401 is 10409961673.

It is a happy number.

The square root of 37616990401 is 193951.

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

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, and also an emirpimes, since its reverse is a distinct semiprime: 10409961673 = 853 ⋅12203941.

It is not a de Polignac number, because 37616990401 - 2¹⁹ = 37616466113 is a prime.

It is a super-2 number, since 2×37616990401² (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 (37616990441) 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, 96976 + ... + 290926.

It is an arithmetic number, because the mean of its divisors is an integer number (12539061451).

Almost surely, 2^37616990401 is an apocalyptic number.

37616990401 is the 193951-st square number.

37616990401 is the 96976-th centered octagonal number.

It is an amenable number.

37616990401 is a deficient number, since it is larger than the sum of its proper divisors (193952).

37616990401 is an frugal number, since it uses more digits than its factorization.

37616990401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387902 (or 193951 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 46.

The spelling of 37616990401 in words is "thirty-seven billion, six hundred sixteen million, nine hundred ninety thousand, four hundred one".