7872449742 has 12 divisors (see below), whose sum is σ = 17056974480. Its totient is φ = 2624149908.

The previous prime is 7872449723. The next prime is 7872449771. The reversal of 7872449742 is 2479442787.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 218679142 + ... + 218679177.

It is an arithmetic number, because the mean of its divisors is an integer number (1421414540).

Almost surely, 2^7872449742 is an apocalyptic number.

7872449742 is an abundant number, since it is smaller than the sum of its proper divisors (9184524738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7872449742 is a wasteful number, since it uses less digits than its factorization.

7872449742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437358327 (or 437358324 counting only the distinct ones).

The product of its digits is 6322176, while the sum is 54.

The square root of 7872449742 is about 88726.8265069815. The cubic root of 7872449742 is about 1989.3138162639.

The spelling of 7872449742 in words is "seven billion, eight hundred seventy-two million, four hundred forty-nine thousand, seven hundred forty-two".