42897695181 has 8 divisors (see below), whose sum is σ = 62396647584. Its totient is φ = 25998603120.

The previous prime is 42897695177. The next prime is 42897695219. The reversal of 42897695181 is 18159679824.

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

It is not a de Polignac number, because 42897695181 - 2² = 42897695177 is a prime.

It is a super-2 number, since 2×42897695181² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42897695101) 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, 649965046 + ... + 649965111.

It is an arithmetic number, because the mean of its divisors is an integer number (7799580948).

Almost surely, 2^42897695181 is an apocalyptic number.

It is an amenable number.

42897695181 is a deficient number, since it is larger than the sum of its proper divisors (19498952403).

42897695181 is a wasteful number, since it uses less digits than its factorization.

42897695181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299930171.

The product of its digits is 8709120, while the sum is 60.

The spelling of 42897695181 in words is "forty-two billion, eight hundred ninety-seven million, six hundred ninety-five thousand, one hundred eighty-one".