42734657734 has 4 divisors (see below), whose sum is σ = 64101986604. Its totient is φ = 21367328866.

The previous prime is 42734657729. The next prime is 42734657761. The reversal of 42734657734 is 43775643724.

42734657734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10683664432 + ... + 10683664435.

It is an arithmetic number, because the mean of its divisors is an integer number (16025496651).

Almost surely, 2^42734657734 is an apocalyptic number.

42734657734 is a deficient number, since it is larger than the sum of its proper divisors (21367328870).

42734657734 is a wasteful number, since it uses less digits than its factorization.

42734657734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21367328869.

The product of its digits is 11854080, while the sum is 52.

The spelling of 42734657734 in words is "forty-two billion, seven hundred thirty-four million, six hundred fifty-seven thousand, seven hundred thirty-four".