42897867231 has 8 divisors (see below), whose sum is σ = 57215495344. Its totient is φ = 28589408640.

The previous prime is 42897867193. The next prime is 42897867247. The reversal of 42897867231 is 13276879824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42897867231 - 2⁹ = 42897866719 is a prime.

It is a super-2 number, since 2×42897867231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42897867431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2281456 + ... + 2300181.

It is an arithmetic number, because the mean of its divisors is an integer number (7151936918).

Almost surely, 2^42897867231 is an apocalyptic number.

42897867231 is a deficient number, since it is larger than the sum of its proper divisors (14317628113).

42897867231 is a wasteful number, since it uses less digits than its factorization.

42897867231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4584761.

The product of its digits is 8128512, while the sum is 57.

The spelling of 42897867231 in words is "forty-two billion, eight hundred ninety-seven million, eight hundred sixty-seven thousand, two hundred thirty-one".