77050831423 has 4 divisors (see below), whose sum is σ = 81106138360. Its totient is φ = 72995524488.

The previous prime is 77050831369. The next prime is 77050831441. The reversal of 77050831423 is 32413805077.

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 77050831423 - 2³³ = 68460896831 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 (77050831463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2027653440 + ... + 2027653477.

It is an arithmetic number, because the mean of its divisors is an integer number (20276534590).

Almost surely, 2^77050831423 is an apocalyptic number.

77050831423 is a deficient number, since it is larger than the sum of its proper divisors (4055306937).

77050831423 is a wasteful number, since it uses less digits than its factorization.

77050831423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4055306936.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 77050831423 in words is "seventy-seven billion, fifty million, eight hundred thirty-one thousand, four hundred twenty-three".