37628699682649 has 2 divisors, whose sum is σ = 37628699682650. Its totient is φ = 37628699682648.

The previous prime is 37628699682571. The next prime is 37628699682689. The reversal of 37628699682649 is 94628699682673.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32171186961225 + 5457512721424 = 5671965^2 + 2336132^2 .

It is a cyclic number.

It is not a de Polignac number, because 37628699682649 - 2²⁷ = 37628565464921 is a prime.

It is not a weakly prime, because it can be changed into another prime (37628699682689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18814349841324 + 18814349841325.

It is an arithmetic number, because the mean of its divisors is an integer number (18814349841325).

Almost surely, 2^{37628699682649} is an apocalyptic number.

It is an amenable number.

37628699682649 is a deficient number, since it is larger than the sum of its proper divisors (1).

37628699682649 is an equidigital number, since it uses as much as digits as its factorization.

37628699682649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20316635136, while the sum is 85.

The spelling of 37628699682649 in words is "thirty-seven trillion, six hundred twenty-eight billion, six hundred ninety-nine million, six hundred eighty-two thousand, six hundred forty-nine".