77045654504771 has 4 divisors (see below), whose sum is σ = 77045793006192. Its totient is φ = 77045516003352.

The previous prime is 77045654504657. The next prime is 77045654504803. The reversal of 77045654504771 is 17740545654077.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77045654504771 - 2⁴⁶ = 6676910327107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77045654506771) 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, 68412911 + ... + 69529976.

It is an arithmetic number, because the mean of its divisors is an integer number (19261448251548).

Almost surely, 2^{77045654504771} is an apocalyptic number.

77045654504771 is a deficient number, since it is larger than the sum of its proper divisors (138501421).

77045654504771 is a wasteful number, since it uses less digits than its factorization.

77045654504771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138501420.

The product of its (nonzero) digits is 115248000, while the sum is 62.

The spelling of 77045654504771 in words is "seventy-seven trillion, forty-five billion, six hundred fifty-four million, five hundred four thousand, seven hundred seventy-one".