2611218897 has 32 divisors (see below), whose sum is σ = 4443392000. Its totient is φ = 1484605584.

The previous prime is 2611218881. The next prime is 2611218917. The reversal of 2611218897 is 7988121162.

2611218897 is a `hidden beast` number, since 2 + 611 + 21 + 8 + 8 + 9 + 7 = 666.

It is not a de Polignac number, because 2611218897 - 2⁴ = 2611218881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2611217897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2898 + ... + 72324.

It is an arithmetic number, because the mean of its divisors is an integer number (138856000).

Almost surely, 2^2611218897 is an apocalyptic number.

2611218897 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2611218897 is a deficient number, since it is larger than the sum of its proper divisors (1832173103).

2611218897 is a wasteful number, since it uses less digits than its factorization.

2611218897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69642 (or 69636 counting only the distinct ones).

The product of its digits is 96768, while the sum is 45.

The square root of 2611218897 is about 51100.0870547204. The cubic root of 2611218897 is about 1377.0438184090.

The spelling of 2611218897 in words is "two billion, six hundred eleven million, two hundred eighteen thousand, eight hundred ninety-seven".