37742758409 has 2 divisors, whose sum is σ = 37742758410. Its totient is φ = 37742758408.

The previous prime is 37742758379. The next prime is 37742758429. The reversal of 37742758409 is 90485724773.

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., 37685680384 + 57078025 = 194128^2 + 7555^2 .

It is a cyclic number.

It is not a de Polignac number, because 37742758409 - 2²⁰ = 37741709833 is a prime.

It is a super-2 number, since 2×37742758409² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (37742758429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18871379204 + 18871379205.

It is an arithmetic number, because the mean of its divisors is an integer number (18871379205).

Almost surely, 2^37742758409 is an apocalyptic number.

It is an amenable number.

37742758409 is a deficient number, since it is larger than the sum of its proper divisors (1).

37742758409 is an equidigital number, since it uses as much as digits as its factorization.

37742758409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11854080, while the sum is 56.

The spelling of 37742758409 in words is "thirty-seven billion, seven hundred forty-two million, seven hundred fifty-eight thousand, four hundred nine".