37456760821 has 2 divisors, whose sum is σ = 37456760822. Its totient is φ = 37456760820.

The previous prime is 37456760743. The next prime is 37456760843. The reversal of 37456760821 is 12806765473.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27220380196 + 10236380625 = 164986^2 + 101175^2 .

It is a cyclic number.

It is not a de Polignac number, because 37456760821 - 2¹⁹ = 37456236533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37456760881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18728380410 + 18728380411.

It is an arithmetic number, because the mean of its divisors is an integer number (18728380411).

Almost surely, 2^37456760821 is an apocalyptic number.

It is an amenable number.

37456760821 is a deficient number, since it is larger than the sum of its proper divisors (1).

37456760821 is an equidigital number, since it uses as much as digits as its factorization.

37456760821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 37456760821 in words is "thirty-seven billion, four hundred fifty-six million, seven hundred sixty thousand, eight hundred twenty-one".