42177777723 has 12 divisors (see below), whose sum is σ = 61005462960. Its totient is φ = 28080669456.

The previous prime is 42177777709. The next prime is 42177777727. The reversal of 42177777723 is 32777777124.

It is not a de Polignac number, because 42177777723 - 2⁹ = 42177777211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42177777723.

It is not an unprimeable number, because it can be changed into a prime (42177777727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3147028 + ... + 3160401.

It is an arithmetic number, because the mean of its divisors is an integer number (5083788580).

Almost surely, 2^42177777723 is an apocalyptic number.

42177777723 is a deficient number, since it is larger than the sum of its proper divisors (18827685237).

42177777723 is a wasteful number, since it uses less digits than its factorization.

42177777723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6308178 (or 6308175 counting only the distinct ones).

The product of its digits is 5647152, while the sum is 54.

It can be divided in two parts, 421777 and 77723, that added together give a triangular number (499500 = T₉₉₉).

The spelling of 42177777723 in words is "forty-two billion, one hundred seventy-seven million, seven hundred seventy-seven thousand, seven hundred twenty-three".