77270494027 has 4 divisors (see below), whose sum is σ = 77307842880. Its totient is φ = 77233145176.

The previous prime is 77270494003. The next prime is 77270494051. The reversal of 77270494027 is 72049407277.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72049407277 = 199 ⋅362057323.

It is an interprime number because it is at equal distance from previous prime (77270494003) and next prime (77270494051).

It is a cyclic number.

It is not a de Polignac number, because 77270494027 - 2²⁷ = 77136276299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77279494027) 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, 18671323 + ... + 18675460.

It is an arithmetic number, because the mean of its divisors is an integer number (19326960720).

Almost surely, 2^77270494027 is an apocalyptic number.

77270494027 is a deficient number, since it is larger than the sum of its proper divisors (37348853).

77270494027 is a wasteful number, since it uses less digits than its factorization.

77270494027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37348852.

The product of its (nonzero) digits is 1382976, while the sum is 49.

The spelling of 77270494027 in words is "seventy-seven billion, two hundred seventy million, four hundred ninety-four thousand, twenty-seven".