761860290409 has 2 divisors, whose sum is σ = 761860290410. Its totient is φ = 761860290408.

The previous prime is 761860290313. The next prime is 761860290427. The reversal of 761860290409 is 904092068167.

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., 535279530384 + 226580760025 = 731628^2 + 476005^2 .

It is a cyclic number.

It is not a de Polignac number, because 761860290409 - 2¹³ = 761860282217 is a prime.

It is a super-2 number, since 2×761860290409² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (761860290469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380930145204 + 380930145205.

It is an arithmetic number, because the mean of its divisors is an integer number (380930145205).

Almost surely, 2^761860290409 is an apocalyptic number.

It is an amenable number.

761860290409 is a deficient number, since it is larger than the sum of its proper divisors (1).

761860290409 is an equidigital number, since it uses as much as digits as its factorization.

761860290409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 761860290409 in words is "seven hundred sixty-one billion, eight hundred sixty million, two hundred ninety thousand, four hundred nine".