42820423077 has 16 divisors (see below), whose sum is σ = 59070113280. Its totient is φ = 27559089600.

The previous prime is 42820423043. The next prime is 42820423081. The reversal of 42820423077 is 77032402824.

It is not a de Polignac number, because 42820423077 - 2²² = 42816228773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42820423027) 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, 783627 + ... + 836487.

It is an arithmetic number, because the mean of its divisors is an integer number (3691882080).

Almost surely, 2^42820423077 is an apocalyptic number.

It is an amenable number.

42820423077 is a deficient number, since it is larger than the sum of its proper divisors (16249690203).

42820423077 is a wasteful number, since it uses less digits than its factorization.

42820423077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62204.

The product of its (nonzero) digits is 150528, while the sum is 39.

The spelling of 42820423077 in words is "forty-two billion, eight hundred twenty million, four hundred twenty-three thousand, seventy-seven".