769134813 has 4 divisors (see below), whose sum is σ = 1025513088. Its totient is φ = 512756540.

The previous prime is 769134811. The next prime is 769134829. The reversal of 769134813 is 318431967.

769134813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 769134813 - 2¹ = 769134811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (769134811) 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, 128189133 + ... + 128189138.

It is an arithmetic number, because the mean of its divisors is an integer number (256378272).

Almost surely, 2^769134813 is an apocalyptic number.

It is an amenable number.

769134813 is a deficient number, since it is larger than the sum of its proper divisors (256378275).

769134813 is a wasteful number, since it uses less digits than its factorization.

769134813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256378274.

The product of its digits is 108864, while the sum is 42.

The square root of 769134813 is about 27733.2798817594. The cubic root of 769134813 is about 916.2222264387. Note that the first 5 decimals are identical.

The spelling of 769134813 in words is "seven hundred sixty-nine million, one hundred thirty-four thousand, eight hundred thirteen".