2661476811 has 8 divisors (see below), whose sum is σ = 4055583744. Its totient is φ = 1520843880.

The previous prime is 2661476777. The next prime is 2661476863. The reversal of 2661476811 is 1186741662.

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

It is not a de Polignac number, because 2661476811 - 2¹³ = 2661468619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2661476891) 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, 63368475 + ... + 63368516.

It is an arithmetic number, because the mean of its divisors is an integer number (506947968).

Almost surely, 2^2661476811 is an apocalyptic number.

2661476811 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2661476811 is a deficient number, since it is larger than the sum of its proper divisors (1394106933).

2661476811 is a wasteful number, since it uses less digits than its factorization.

2661476811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126737001.

The product of its digits is 96768, while the sum is 42.

The square root of 2661476811 is about 51589.5029148372. The cubic root of 2661476811 is about 1385.8223532282.

The spelling of 2661476811 in words is "two billion, six hundred sixty-one million, four hundred seventy-six thousand, eight hundred eleven".