761261065042 has 4 divisors (see below), whose sum is σ = 1141891597566. Its totient is φ = 380630532520.

The previous prime is 761261065031. The next prime is 761261065073. The reversal of 761261065042 is 240560162167.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 750820517001 + 10440548041 = 866499^2 + 102179^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 761261064986 and 761261065004.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190315266259 + ... + 190315266262.

Almost surely, 2^761261065042 is an apocalyptic number.

761261065042 is a deficient number, since it is larger than the sum of its proper divisors (380630532524).

761261065042 is a wasteful number, since it uses less digits than its factorization.

761261065042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380630532523.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 761261065042 in words is "seven hundred sixty-one billion, two hundred sixty-one million, sixty-five thousand, forty-two".