42891288429 has 16 divisors (see below), whose sum is σ = 63564450624. Its totient is φ = 25504252800.

The previous prime is 42891288403. The next prime is 42891288443. The reversal of 42891288429 is 92488219824.

It is not a de Polignac number, because 42891288429 - 2⁷ = 42891288301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42891288499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12259912 + ... + 12263409.

It is an arithmetic number, because the mean of its divisors is an integer number (3972778164).

Almost surely, 2^42891288429 is an apocalyptic number.

It is an amenable number.

42891288429 is a deficient number, since it is larger than the sum of its proper divisors (20673162195).

42891288429 is a wasteful number, since it uses less digits than its factorization.

42891288429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24523388.

The product of its digits is 5308416, while the sum is 57.

The spelling of 42891288429 in words is "forty-two billion, eight hundred ninety-one million, two hundred eighty-eight thousand, four hundred twenty-nine".