37650758021 has 2 divisors, whose sum is σ = 37650758022. Its totient is φ = 37650758020.

The previous prime is 37650757951. The next prime is 37650758023. The reversal of 37650758021 is 12085705673.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34516437796 + 3134320225 = 185786^2 + 55985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37650758021 is a prime.

Together with 37650758023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37650758023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18825379010 + 18825379011.

It is an arithmetic number, because the mean of its divisors is an integer number (18825379011).

Almost surely, 2^37650758021 is an apocalyptic number.

It is an amenable number.

37650758021 is a deficient number, since it is larger than the sum of its proper divisors (1).

37650758021 is an equidigital number, since it uses as much as digits as its factorization.

37650758021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 352800, while the sum is 44.

The spelling of 37650758021 in words is "thirty-seven billion, six hundred fifty million, seven hundred fifty-eight thousand, twenty-one".