6770139427 has 4 divisors (see below), whose sum is σ = 6835869040. Its totient is φ = 6704409816.

The previous prime is 6770139379. The next prime is 6770139443. The reversal of 6770139427 is 7249310776.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6770139427 is a prime.

It is a super-2 number, since 2×6770139427² = 91669575722039776658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6770139457) 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, 32864652 + ... + 32864857.

It is an arithmetic number, because the mean of its divisors is an integer number (1708967260).

Almost surely, 2^6770139427 is an apocalyptic number.

6770139427 is a deficient number, since it is larger than the sum of its proper divisors (65729613).

6770139427 is a wasteful number, since it uses less digits than its factorization.

6770139427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65729612.

The product of its (nonzero) digits is 444528, while the sum is 46.

The square root of 6770139427 is about 82280.8569899463. The cubic root of 6770139427 is about 1891.7592707105.

The spelling of 6770139427 in words is "six billion, seven hundred seventy million, one hundred thirty-nine thousand, four hundred twenty-seven".