761609968861 has 64 divisors (see below), whose sum is σ = 942934348800. Its totient is φ = 613642444800.

The previous prime is 761609968813. The next prime is 761609968871. The reversal of 761609968861 is 168869906167.

It is not a de Polignac number, because 761609968861 - 2¹³ = 761609960669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (761609968871) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 109156605 + ... + 109163581.

It is an arithmetic number, because the mean of its divisors is an integer number (14733349200).

Almost surely, 2^761609968861 is an apocalyptic number.

It is an amenable number.

761609968861 is a deficient number, since it is larger than the sum of its proper divisors (181324379939).

761609968861 is a wasteful number, since it uses less digits than its factorization.

761609968861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7259 (or 7245 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 67.

The spelling of 761609968861 in words is "seven hundred sixty-one billion, six hundred nine million, nine hundred sixty-eight thousand, eight hundred sixty-one".