76472697771 has 6 divisors (see below), whose sum is σ = 110460563460. Its totient is φ = 50981798508.

The previous prime is 76472697761. The next prime is 76472697773. The reversal of 76472697771 is 17779627467.

76472697771 is a `hidden beast` number, since 7 + 6 + 472 + 6 + 97 + 7 + 71 = 666.

It is not a de Polignac number, because 76472697771 - 2¹¹ = 76472695723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76472697699 and 76472697708.

It is not an unprimeable number, because it can be changed into a prime (76472697773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4248483201 + ... + 4248483218.

It is an arithmetic number, because the mean of its divisors is an integer number (18410093910).

Almost surely, 2^76472697771 is an apocalyptic number.

76472697771 is a deficient number, since it is larger than the sum of its proper divisors (33987865689).

76472697771 is a wasteful number, since it uses less digits than its factorization.

76472697771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8496966425 (or 8496966422 counting only the distinct ones).

The product of its digits is 43563744, while the sum is 63.

The spelling of 76472697771 in words is "seventy-six billion, four hundred seventy-two million, six hundred ninety-seven thousand, seven hundred seventy-one".