7266881881 has 8 divisors (see below), whose sum is σ = 8529467840. Its totient is φ = 6060410928.

The previous prime is 7266881849. The next prime is 7266881903. The reversal of 7266881881 is 1881886627.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 7266881881 - 2⁵ = 7266881849 is a prime.

It is a super-2 number, since 2×7266881881² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7266881581) 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, 14028471 + ... + 14028988.

It is an arithmetic number, because the mean of its divisors is an integer number (1066183480).

Almost surely, 2^7266881881 is an apocalyptic number.

It is an amenable number.

7266881881 is a deficient number, since it is larger than the sum of its proper divisors (1262585959).

7266881881 is a wasteful number, since it uses less digits than its factorization.

7266881881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28057503.

The product of its digits is 2064384, while the sum is 55.

The square root of 7266881881 is about 85246.0080062404. The cubic root of 7266881881 is about 1936.9394012993.

The spelling of 7266881881 in words is "seven billion, two hundred sixty-six million, eight hundred eighty-one thousand, eight hundred eighty-one".