77033343671 has 4 divisors (see below), whose sum is σ = 81087730200. Its totient is φ = 72978957144.

The previous prime is 77033343649. The next prime is 77033343679. The reversal of 77033343671 is 17634333077.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17634333077 = 4337 ⋅4066021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77033343671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77033343679) 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, 2027193236 + ... + 2027193273.

It is an arithmetic number, because the mean of its divisors is an integer number (20271932550).

Almost surely, 2^77033343671 is an apocalyptic number.

77033343671 is a deficient number, since it is larger than the sum of its proper divisors (4054386529).

77033343671 is a wasteful number, since it uses less digits than its factorization.

77033343671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054386528.

The product of its (nonzero) digits is 666792, while the sum is 44.

The spelling of 77033343671 in words is "seventy-seven billion, thirty-three million, three hundred forty-three thousand, six hundred seventy-one".