611923088129 has 4 divisors (see below), whose sum is σ = 626848041540. Its totient is φ = 596998134720.

The previous prime is 611923088083. The next prime is 611923088143. The reversal of 611923088129 is 921880329116.

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 21904000000 + 590019088129 = 148000^2 + 768127^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-611923088129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (611923087129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7462476644 + ... + 7462476725.

It is an arithmetic number, because the mean of its divisors is an integer number (156712010385).

Almost surely, 2^611923088129 is an apocalyptic number.

It is an amenable number.

611923088129 is a deficient number, since it is larger than the sum of its proper divisors (14924953411).

611923088129 is a wasteful number, since it uses less digits than its factorization.

611923088129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14924953410.

The product of its (nonzero) digits is 373248, while the sum is 50.

The spelling of 611923088129 in words is "six hundred eleven billion, nine hundred twenty-three million, eighty-eight thousand, one hundred twenty-nine".