37145736973 has 2 divisors, whose sum is σ = 37145736974. Its totient is φ = 37145736972.

The previous prime is 37145736961. The next prime is 37145737003. The reversal of 37145736973 is 37963754173.

37145736973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35098898409 + 2046838564 = 187347^2 + 45242^2 .

It is a cyclic number.

It is not a de Polignac number, because 37145736973 - 2⁵ = 37145736941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37145736923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18572868486 + 18572868487.

It is an arithmetic number, because the mean of its divisors is an integer number (18572868487).

Almost surely, 2^37145736973 is an apocalyptic number.

It is an amenable number.

37145736973 is a deficient number, since it is larger than the sum of its proper divisors (1).

37145736973 is an equidigital number, since it uses as much as digits as its factorization.

37145736973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10001880, while the sum is 55.

The spelling of 37145736973 in words is "thirty-seven billion, one hundred forty-five million, seven hundred thirty-six thousand, nine hundred seventy-three".