7891426892 has 12 divisors (see below), whose sum is σ = 13828391136. Its totient is φ = 3940458000.

The previous prime is 7891426817. The next prime is 7891426909. The reversal of 7891426892 is 2986241987.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1310483 + ... + 1316490.

It is an arithmetic number, because the mean of its divisors is an integer number (1152365928).

Almost surely, 2^7891426892 is an apocalyptic number.

It is an amenable number.

7891426892 is a deficient number, since it is larger than the sum of its proper divisors (5936964244).

7891426892 is a wasteful number, since it uses less digits than its factorization.

7891426892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627728 (or 2627726 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 56.

The square root of 7891426892 is about 88833.7035814673. The cubic root of 7891426892 is about 1990.9109985969.

The spelling of 7891426892 in words is "seven billion, eight hundred ninety-one million, four hundred twenty-six thousand, eight hundred ninety-two".