9169872542 has 4 divisors (see below), whose sum is σ = 13754808816. Its totient is φ = 4584936270.

The previous prime is 9169872533. The next prime is 9169872611. The reversal of 9169872542 is 2452789619.

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, 2292468134 + ... + 2292468137.

It is an arithmetic number, because the mean of its divisors is an integer number (3438702204).

Almost surely, 2^9169872542 is an apocalyptic number.

9169872542 is a deficient number, since it is larger than the sum of its proper divisors (4584936274).

9169872542 is a wasteful number, since it uses less digits than its factorization.

9169872542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4584936273.

The product of its digits is 2177280, while the sum is 53.

The square root of 9169872542 is about 95759.4514499744. The cubic root of 9169872542 is about 2093.0893425365.

The spelling of 9169872542 in words is "nine billion, one hundred sixty-nine million, eight hundred seventy-two thousand, five hundred forty-two".