79564468149 has 6 divisors (see below), whose sum is σ = 114926454006. Its totient is φ = 53042978760.

The previous prime is 79564468079. The next prime is 79564468183. The reversal of 79564468149 is 94186446597.

79564468149 is a `hidden beast` number, since 7 + 9 + 564 + 4 + 68 + 1 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 55045605924 + 24518862225 = 234618^2 + 156585^2 .

It is not a de Polignac number, because 79564468149 - 2¹² = 79564464053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79564468189) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4420248222 + ... + 4420248239.

It is an arithmetic number, because the mean of its divisors is an integer number (19154409001).

Almost surely, 2^79564468149 is an apocalyptic number.

It is an amenable number.

79564468149 is a deficient number, since it is larger than the sum of its proper divisors (35361985857).

79564468149 is a wasteful number, since it uses less digits than its factorization.

79564468149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8840496467 (or 8840496464 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

The spelling of 79564468149 in words is "seventy-nine billion, five hundred sixty-four million, four hundred sixty-eight thousand, one hundred forty-nine".