42122159247 has 64 divisors (see below), whose sum is σ = 66189312000. Its totient is φ = 23816469600.

The previous prime is 42122159243. The next prime is 42122159249. The reversal of 42122159247 is 74295122124.

It is not a de Polignac number, because 42122159247 - 2² = 42122159243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42122159243) 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 63 ways as a sum of consecutive naturals, for example, 65103478 + ... + 65104124.

It is an arithmetic number, because the mean of its divisors is an integer number (1034208000).

Almost surely, 2^42122159247 is an apocalyptic number.

42122159247 is a deficient number, since it is larger than the sum of its proper divisors (24067152753).

42122159247 is a wasteful number, since it uses less digits than its factorization.

42122159247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241 (or 1227 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The spelling of 42122159247 in words is "forty-two billion, one hundred twenty-two million, one hundred fifty-nine thousand, two hundred forty-seven".