11819407765 has 16 divisors (see below), whose sum is σ = 16006222080. Its totient is φ = 8299520320.

The previous prime is 11819407751. The next prime is 11819407783. The reversal of 11819407765 is 56770491811.

It is not a de Polignac number, because 11819407765 - 2⁹ = 11819407253 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3703549 + ... + 3706738.

It is an arithmetic number, because the mean of its divisors is an integer number (1000388880).

Almost surely, 2^11819407765 is an apocalyptic number.

It is an amenable number.

11819407765 is a deficient number, since it is larger than the sum of its proper divisors (4186814315).

11819407765 is a wasteful number, since it uses less digits than its factorization.

11819407765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7410332.

The product of its (nonzero) digits is 423360, while the sum is 49.

The spelling of 11819407765 in words is "eleven billion, eight hundred nineteen million, four hundred seven thousand, seven hundred sixty-five".