15243878622 has 32 divisors (see below), whose sum is σ = 34848864000. Its totient is φ = 4354679808.

The previous prime is 15243878609. The next prime is 15243878633. The reversal of 15243878622 is 22687834251.

15243878622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 263454 + ... + 316062.

It is an arithmetic number, because the mean of its divisors is an integer number (1089027000).

Almost surely, 2^15243878622 is an apocalyptic number.

15243878622 is an abundant number, since it is smaller than the sum of its proper divisors (19604985378).

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

15243878622 is a wasteful number, since it uses less digits than its factorization.

15243878622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59520.

The product of its digits is 1290240, while the sum is 48.

The spelling of 15243878622 in words is "fifteen billion, two hundred forty-three million, eight hundred seventy-eight thousand, six hundred twenty-two".