77350423893 has 4 divisors (see below), whose sum is σ = 103133898528. Its totient is φ = 51566949260.

The previous prime is 77350423849. The next prime is 77350423901. The reversal of 77350423893 is 39832405377.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 77350423893 - 2¹⁷ = 77350292821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77350023893) 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, 12891737313 + ... + 12891737318.

It is an arithmetic number, because the mean of its divisors is an integer number (25783474632).

Almost surely, 2^77350423893 is an apocalyptic number.

It is an amenable number.

77350423893 is a deficient number, since it is larger than the sum of its proper divisors (25783474635).

77350423893 is a wasteful number, since it uses less digits than its factorization.

77350423893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25783474634.

The product of its (nonzero) digits is 3810240, while the sum is 51.

The spelling of 77350423893 in words is "seventy-seven billion, three hundred fifty million, four hundred twenty-three thousand, eight hundred ninety-three".