42494791834 has 16 divisors (see below), whose sum is σ = 69693916320. Its totient is φ = 19272207760.

The previous prime is 42494791799. The next prime is 42494791841. The reversal of 42494791834 is 43819749424.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2170369 + ... + 2189860.

It is an arithmetic number, because the mean of its divisors is an integer number (4355869770).

Almost surely, 2^42494791834 is an apocalyptic number.

42494791834 is a deficient number, since it is larger than the sum of its proper divisors (27199124486).

42494791834 is a wasteful number, since it uses less digits than its factorization.

42494791834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4360685.

The product of its digits is 6967296, while the sum is 55.

The spelling of 42494791834 in words is "forty-two billion, four hundred ninety-four million, seven hundred ninety-one thousand, eight hundred thirty-four".