7271999802 has 16 divisors (see below), whose sum is σ = 16159999680. Its totient is φ = 2423999916.

The previous prime is 7271999797. The next prime is 7271999821. The reversal of 7271999802 is 2089991727.

It is a super-2 number, since 2×7271999802² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 134666663 = 7271999802 / (7 + 2 + 7 + 1 + 9 + 9 + 9 + 8 + 0 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67333278 + ... + 67333385.

It is an arithmetic number, because the mean of its divisors is an integer number (1009999980).

Almost surely, 2^7271999802 is an apocalyptic number.

7271999802 is an abundant number, since it is smaller than the sum of its proper divisors (8887999878).

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

7271999802 is a wasteful number, since it uses less digits than its factorization.

7271999802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134666674 (or 134666668 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 54.

The square root of 7271999802 is about 85276.0212603754. The cubic root of 7271999802 is about 1937.3940106127.

The spelling of 7271999802 in words is "seven billion, two hundred seventy-one million, nine hundred ninety-nine thousand, eight hundred two".