8429247542 has 4 divisors (see below), whose sum is σ = 12643871316. Its totient is φ = 4214623770.

The previous prime is 8429247527. The next prime is 8429247553. The reversal of 8429247542 is 2457429248.

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, 2107311884 + ... + 2107311887.

It is an arithmetic number, because the mean of its divisors is an integer number (3160967829).

Almost surely, 2^8429247542 is an apocalyptic number.

8429247542 is a deficient number, since it is larger than the sum of its proper divisors (4214623774).

8429247542 is a wasteful number, since it uses less digits than its factorization.

8429247542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214623773.

The product of its digits is 1290240, while the sum is 47.

The square root of 8429247542 is about 91810.9336735010. The cubic root of 8429247542 is about 2035.1492739436.

The spelling of 8429247542 in words is "eight billion, four hundred twenty-nine million, two hundred forty-seven thousand, five hundred forty-two".