42049780122 has 48 divisors (see below), whose sum is σ = 101203572960. Its totient is φ = 11599936992.

The previous prime is 42049780111. The next prime is 42049780133. The reversal of 42049780122 is 22108794024.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42049780111) and next prime (42049780133).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2457448 + ... + 2474499.

It is an arithmetic number, because the mean of its divisors is an integer number (2108407770).

Almost surely, 2^42049780122 is an apocalyptic number.

42049780122 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

42049780122 is an abundant number, since it is smaller than the sum of its proper divisors (59153792838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42049780122 is a wasteful number, since it uses less digits than its factorization.

42049780122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4931995 (or 4931988 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The spelling of 42049780122 in words is "forty-two billion, forty-nine million, seven hundred eighty thousand, one hundred twenty-two".