761193081109 has 4 divisors (see below), whose sum is σ = 761318098380. Its totient is φ = 761068063840.

The previous prime is 761193081107. The next prime is 761193081127. The reversal of 761193081109 is 901180391167.

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

It can be written as a sum of positive squares in 2 ways, for example, as 337851562500 + 423341518609 = 581250^2 + 650647^2 .

It is a cyclic number.

It is not a de Polignac number, because 761193081109 - 2¹ = 761193081107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (761193081107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62499502 + ... + 62511679.

It is an arithmetic number, because the mean of its divisors is an integer number (190329524595).

Almost surely, 2^761193081109 is an apocalyptic number.

It is an amenable number.

761193081109 is a deficient number, since it is larger than the sum of its proper divisors (125017271).

761193081109 is a wasteful number, since it uses less digits than its factorization.

761193081109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125017270.

The product of its (nonzero) digits is 81648, while the sum is 46.

The spelling of 761193081109 in words is "seven hundred sixty-one billion, one hundred ninety-three million, eighty-one thousand, one hundred nine".