42180139777 has 8 divisors (see below), whose sum is σ = 43519785120. Its totient is φ = 40855297440.

The previous prime is 42180139763. The next prime is 42180139789. The reversal of 42180139777 is 77793108124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42180139777 - 2³⁵ = 7820401409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42180139777.

It is not an unprimeable number, because it can be changed into a prime (42180199777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3694963 + ... + 3706360.

It is an arithmetic number, because the mean of its divisors is an integer number (5439973140).

Almost surely, 2^42180139777 is an apocalyptic number.

It is an amenable number.

42180139777 is a deficient number, since it is larger than the sum of its proper divisors (1339645343).

42180139777 is a wasteful number, since it uses less digits than its factorization.

42180139777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7401503.

The product of its (nonzero) digits is 592704, while the sum is 49.

The spelling of 42180139777 in words is "forty-two billion, one hundred eighty million, one hundred thirty-nine thousand, seven hundred seventy-seven".