42631409677 has 8 divisors (see below), whose sum is σ = 45140975352. Its totient is φ = 40122048000.

The previous prime is 42631409617. The next prime is 42631409687. The reversal of 42631409677 is 77690413624.

It can be written as a sum of positive squares in 4 ways, for example, as 25193943076 + 17437466601 = 158726^2 + 132051^2 .

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 42631409677 - 2¹⁹ = 42630885389 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 42631409677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42631409617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 673177 + ... + 733777.

It is an arithmetic number, because the mean of its divisors is an integer number (5642621919).

Almost surely, 2^42631409677 is an apocalyptic number.

It is an amenable number.

42631409677 is a deficient number, since it is larger than the sum of its proper divisors (2509565675).

42631409677 is a wasteful number, since it uses less digits than its factorization.

42631409677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101999.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The spelling of 42631409677 in words is "forty-two billion, six hundred thirty-one million, four hundred nine thousand, six hundred seventy-seven".