76547046769 has 4 divisors (see below), whose sum is σ = 81049814244. Its totient is φ = 72044279296.

The previous prime is 76547046721. The next prime is 76547046799. The reversal of 76547046769 is 96764074567.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96764074567 = 1723 ⋅56160229.

It can be written as a sum of positive squares in 2 ways, for example, as 23897449744 + 52649597025 = 154588^2 + 229455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76547046769 is a prime.

It is a super-2 number, since 2×76547046769² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76547046799) 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, 2251383712 + ... + 2251383745.

It is an arithmetic number, because the mean of its divisors is an integer number (20262453561).

Almost surely, 2^76547046769 is an apocalyptic number.

It is an amenable number.

76547046769 is a deficient number, since it is larger than the sum of its proper divisors (4502767475).

76547046769 is a wasteful number, since it uses less digits than its factorization.

76547046769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4502767474.

The product of its (nonzero) digits is 53343360, while the sum is 61.

The spelling of 76547046769 in words is "seventy-six billion, five hundred forty-seven million, forty-six thousand, seven hundred sixty-nine".