37451949949 has 2 divisors, whose sum is σ = 37451949950. Its totient is φ = 37451949948.

The previous prime is 37451949929. The next prime is 37451950013. The reversal of 37451949949 is 94994915473.

It is an a-pointer prime, because the next prime (37451950013) can be obtained adding 37451949949 to its sum of digits (64).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30930256900 + 6521693049 = 175870^2 + 80757^2 .

It is a cyclic number.

It is not a de Polignac number, because 37451949949 - 2²⁹ = 36915079037 is a prime.

It is a super-2 number, since 2×37451949949² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37451949919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18725974974 + 18725974975.

It is an arithmetic number, because the mean of its divisors is an integer number (18725974975).

Almost surely, 2^37451949949 is an apocalyptic number.

It is an amenable number.

37451949949 is a deficient number, since it is larger than the sum of its proper divisors (1).

37451949949 is an equidigital number, since it uses as much as digits as its factorization.

37451949949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44089920, while the sum is 64.

The spelling of 37451949949 in words is "thirty-seven billion, four hundred fifty-one million, nine hundred forty-nine thousand, nine hundred forty-nine".