42027851697 has 24 divisors (see below), whose sum is σ = 61410402144. Its totient is φ = 25551661824.

The previous prime is 42027851693. The next prime is 42027851737. The reversal of 42027851697 is 79615872024.

It is a happy number.

42027851697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42027851697 - 2² = 42027851693 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42027851693) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 457288 + ... + 541449.

It is an arithmetic number, because the mean of its divisors is an integer number (2558766756).

Almost surely, 2^42027851697 is an apocalyptic number.

It is an amenable number.

42027851697 is a deficient number, since it is larger than the sum of its proper divisors (19382550447).

42027851697 is a wasteful number, since it uses less digits than its factorization.

42027851697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998849 (or 998836 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 42027851697 in words is "forty-two billion, twenty-seven million, eight hundred fifty-one thousand, six hundred ninety-seven".