7196218881 has 8 divisors (see below), whose sum is σ = 10159367904. Its totient is φ = 4515274560.

The previous prime is 7196218811. The next prime is 7196218903. The reversal of 7196218881 is 1888126917.

It is a happy number.

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

It is not a de Polignac number, because 7196218881 - 2¹⁵ = 7196186113 is a prime.

It is a super-2 number, since 2×7196218881² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 141102331 = 7196218881 / (7 + 1 + 9 + 6 + 2 + 1 + 8 + 8 + 8 + 1).

It is not an unprimeable number, because it can be changed into a prime (7196218801) 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, 70551115 + ... + 70551216.

It is an arithmetic number, because the mean of its divisors is an integer number (1269920988).

Almost surely, 2^7196218881 is an apocalyptic number.

It is an amenable number.

7196218881 is a deficient number, since it is larger than the sum of its proper divisors (2963149023).

7196218881 is a wasteful number, since it uses less digits than its factorization.

7196218881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141102351.

The product of its digits is 387072, while the sum is 51.

The square root of 7196218881 is about 84830.5303590635. The cubic root of 7196218881 is about 1930.6406887027.

The spelling of 7196218881 in words is "seven billion, one hundred ninety-six million, two hundred eighteen thousand, eight hundred eighty-one".