761791405243 has 16 divisors (see below), whose sum is σ = 832013804160. Its totient is φ = 691730924800.

The previous prime is 761791405241. The next prime is 761791405259. The reversal of 761791405243 is 342504197167.

It is a cyclic number.

It is not a de Polignac number, because 761791405243 - 2¹ = 761791405241 is a prime.

It is a super-2 number, since 2×761791405243² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (761791405241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37835403 + ... + 37855531.

It is an arithmetic number, because the mean of its divisors is an integer number (52000862760).

Almost surely, 2^761791405243 is an apocalyptic number.

761791405243 is a deficient number, since it is larger than the sum of its proper divisors (70222398917).

761791405243 is a wasteful number, since it uses less digits than its factorization.

761791405243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23978.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 761791405243 in words is "seven hundred sixty-one billion, seven hundred ninety-one million, four hundred five thousand, two hundred forty-three".