2661892747 has 2 divisors, whose sum is σ = 2661892748. Its totient is φ = 2661892746.

The previous prime is 2661892643. The next prime is 2661892763. The reversal of 2661892747 is 7472981662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2661892747 - 2⁷ = 2661892619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2661892694 and 2661892703.

It is not a weakly prime, because it can be changed into another prime (2661892777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330946373 + 1330946374.

It is an arithmetic number, because the mean of its divisors is an integer number (1330946374).

Almost surely, 2^2661892747 is an apocalyptic number.

2661892747 is a deficient number, since it is larger than the sum of its proper divisors (1).

2661892747 is an equidigital number, since it uses as much as digits as its factorization.

2661892747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 52.

The square root of 2661892747 is about 51593.5339650232. The cubic root of 2661892747 is about 1385.8945416437.

The spelling of 2661892747 in words is "two billion, six hundred sixty-one million, eight hundred ninety-two thousand, seven hundred forty-seven".