42167752646 has 8 divisors (see below), whose sum is σ = 66972313080. Its totient is φ = 19843648288.

The previous prime is 42167752643. The next prime is 42167752651. The reversal of 42167752646 is 64625776124.

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

It is a junction number, because it is equal to n+sod(n) for n = 42167752594 and 42167752603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42167752643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620113976 + ... + 620114043.

It is an arithmetic number, because the mean of its divisors is an integer number (8371539135).

Almost surely, 2^42167752646 is an apocalyptic number.

42167752646 is a deficient number, since it is larger than the sum of its proper divisors (24804560434).

42167752646 is a wasteful number, since it uses less digits than its factorization.

42167752646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240228038.

The product of its digits is 3386880, while the sum is 50.

The spelling of 42167752646 in words is "forty-two billion, one hundred sixty-seven million, seven hundred fifty-two thousand, six hundred forty-six".