42681092091 has 32 divisors (see below), whose sum is σ = 63587462400. Its totient is φ = 25241059200.

The previous prime is 42681092063. The next prime is 42681092093. The reversal of 42681092091 is 19029018624.

It is not a de Polignac number, because 42681092091 - 2¹⁴ = 42681075707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42681092093) 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, 1491385 + ... + 1519733.

It is an arithmetic number, because the mean of its divisors is an integer number (1987108200).

Almost surely, 2^42681092091 is an apocalyptic number.

42681092091 is a deficient number, since it is larger than the sum of its proper divisors (20906370309).

42681092091 is a wasteful number, since it uses less digits than its factorization.

42681092091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29467.

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 42681092091 in words is "forty-two billion, six hundred eighty-one million, ninety-two thousand, ninety-one".