42777347927 has 16 divisors (see below), whose sum is σ = 44370612000. Its totient is φ = 41192156544.

The previous prime is 42777347923. The next prime is 42777347941. The reversal of 42777347927 is 72974377724.

It is a cyclic number.

It is not a de Polignac number, because 42777347927 - 2² = 42777347923 is a prime.

It is a super-2 number, since 2×42777347927² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42777347923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29934449 + ... + 29935877.

It is an arithmetic number, because the mean of its divisors is an integer number (2773163250).

Almost surely, 2^42777347927 is an apocalyptic number.

42777347927 is a deficient number, since it is larger than the sum of its proper divisors (1593264073).

42777347927 is a wasteful number, since it uses less digits than its factorization.

42777347927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3490.

The product of its digits is 29042496, while the sum is 59.

The spelling of 42777347927 in words is "forty-two billion, seven hundred seventy-seven million, three hundred forty-seven thousand, nine hundred twenty-seven".