42034889691 has 12 divisors (see below), whose sum is σ = 60811793640. Its totient is φ = 27979537920.

The previous prime is 42034889683. The next prime is 42034889713. The reversal of 42034889691 is 19698843024.

42034889691 is a `hidden beast` number, since 420 + 3 + 48 + 8 + 96 + 91 = 666.

It is not a de Polignac number, because 42034889691 - 2³ = 42034889683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42034889891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3637401 + ... + 3648938.

It is an arithmetic number, because the mean of its divisors is an integer number (5067649470).

Almost surely, 2^42034889691 is an apocalyptic number.

42034889691 is a deficient number, since it is larger than the sum of its proper divisors (18776903949).

42034889691 is a wasteful number, since it uses less digits than its factorization.

42034889691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7286986 (or 7286983 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 42034889691 in words is "forty-two billion, thirty-four million, eight hundred eighty-nine thousand, six hundred ninety-one".