42047346138 has 16 divisors (see below), whose sum is σ = 96108219840. Its totient is φ = 12013527456.

The previous prime is 42047346113. The next prime is 42047346149. The reversal of 42047346138 is 83164374024.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1001127289 = 42047346138 / (4 + 2 + 0 + 4 + 7 + 3 + 4 + 6 + 1 + 3 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 42047346138.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500563603 + ... + 500563686.

It is an arithmetic number, because the mean of its divisors is an integer number (6006763740).

Almost surely, 2^42047346138 is an apocalyptic number.

42047346138 is an abundant number, since it is smaller than the sum of its proper divisors (54060873702).

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

42047346138 is a wasteful number, since it uses less digits than its factorization.

42047346138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001127301.

The product of its (nonzero) digits is 387072, while the sum is 42.

The spelling of 42047346138 in words is "forty-two billion, forty-seven million, three hundred forty-six thousand, one hundred thirty-eight".