77064369145 has 32 divisors (see below), whose sum is σ = 98444408832. Its totient is φ = 57713175552.

The previous prime is 77064369139. The next prime is 77064369197. The reversal of 77064369145 is 54196346077.

It is a cyclic number.

It is not a de Polignac number, because 77064369145 - 2⁷ = 77064369017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77064369092 and 77064369101.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16383864 + ... + 16388566.

It is an arithmetic number, because the mean of its divisors is an integer number (3076387776).

Almost surely, 2^77064369145 is an apocalyptic number.

It is an amenable number.

77064369145 is a deficient number, since it is larger than the sum of its proper divisors (21380039687).

77064369145 is a wasteful number, since it uses less digits than its factorization.

77064369145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5721.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 77064369145 in words is "seventy-seven billion, sixty-four million, three hundred sixty-nine thousand, one hundred forty-five".