7271999801 has 8 divisors (see below), whose sum is σ = 7940934144. Its totient is φ = 6604372720.

The previous prime is 7271999797. The next prime is 7271999821. The reversal of 7271999801 is 1089991727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7271999801 - 2² = 7271999797 is a prime.

It is a super-2 number, since 2×7271999801² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7271999821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315161 + ... + 337446.

It is an arithmetic number, because the mean of its divisors is an integer number (992616768).

Almost surely, 2^7271999801 is an apocalyptic number.

It is an amenable number.

7271999801 is a deficient number, since it is larger than the sum of its proper divisors (668934343).

7271999801 is a wasteful number, since it uses less digits than its factorization.

7271999801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653631.

The product of its (nonzero) digits is 571536, while the sum is 53.

The square root of 7271999801 is about 85276.0212545121. The cubic root of 7271999801 is about 1937.3940105239.

The spelling of 7271999801 in words is "seven billion, two hundred seventy-one million, nine hundred ninety-nine thousand, eight hundred one".