7271999854 has 16 divisors (see below), whose sum is σ = 12491280000. Its totient is φ = 3110322744.

The previous prime is 7271999831. The next prime is 7271999857. The reversal of 7271999854 is 4589991727.

It is a junction number, because it is equal to n+sod(n) for n = 7271999792 and 7271999801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7271999857) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 513484 + ... + 527455.

It is an arithmetic number, because the mean of its divisors is an integer number (780705000).

Almost surely, 2^7271999854 is an apocalyptic number.

7271999854 is a deficient number, since it is larger than the sum of its proper divisors (5219280146).

7271999854 is a wasteful number, since it uses less digits than its factorization.

7271999854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041447.

The product of its digits is 11430720, while the sum is 61.

The square root of 7271999854 is about 85276.0215652677. The cubic root of 7271999854 is about 1937.3940152306.

The spelling of 7271999854 in words is "seven billion, two hundred seventy-one million, nine hundred ninety-nine thousand, eight hundred fifty-four".