42112081390 has 64 divisors (see below), whose sum is σ = 78967088640. Its totient is φ = 16156506240.

The previous prime is 42112081367. The next prime is 42112081391. The reversal of 42112081390 is 9318021124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42112081391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24104497 + ... + 24106243.

It is an arithmetic number, because the mean of its divisors is an integer number (1233860760).

Almost surely, 2^42112081390 is an apocalyptic number.

42112081390 is a deficient number, since it is larger than the sum of its proper divisors (36855007250).

42112081390 is a wasteful number, since it uses less digits than its factorization.

42112081390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2777.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 42112081390 in words is "forty-two billion, one hundred twelve million, eighty-one thousand, three hundred ninety".