37206978049 has 2 divisors, whose sum is σ = 37206978050. Its totient is φ = 37206978048.

The previous prime is 37206978013. The next prime is 37206978071. The reversal of 37206978049 is 94087960273.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26516865600 + 10690112449 = 162840^2 + 103393^2 .

It is an emirp because it is prime and its reverse (94087960273) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37206978049 is a prime.

It is not a weakly prime, because it can be changed into another prime (37206948049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18603489024 + 18603489025.

It is an arithmetic number, because the mean of its divisors is an integer number (18603489025).

Almost surely, 2^37206978049 is an apocalyptic number.

It is an amenable number.

37206978049 is a deficient number, since it is larger than the sum of its proper divisors (1).

37206978049 is an equidigital number, since it uses as much as digits as its factorization.

37206978049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 37206978049 in words is "thirty-seven billion, two hundred six million, nine hundred seventy-eight thousand, forty-nine".