2647274057 has 4 divisors (see below), whose sum is σ = 2647553220. Its totient is φ = 2646994896.

The previous prime is 2647274023. The next prime is 2647274087. The reversal of 2647274057 is 7504727462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7504727462 = 2 ⋅3752363731.

It can be written as a sum of positive squares in 2 ways, for example, as 1228923136 + 1418350921 = 35056^2 + 37661^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2647274057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2647273999 and 2647274017.

It is not an unprimeable number, because it can be changed into a prime (2647274087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124838 + ... + 144495.

It is an arithmetic number, because the mean of its divisors is an integer number (661888305).

Almost surely, 2^2647274057 is an apocalyptic number.

It is an amenable number.

2647274057 is a deficient number, since it is larger than the sum of its proper divisors (279163).

2647274057 is an equidigital number, since it uses as much as digits as its factorization.

2647274057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279162.

The product of its (nonzero) digits is 658560, while the sum is 44.

The square root of 2647274057 is about 51451.6671935905. The cubic root of 2647274057 is about 1383.3528458982.

The spelling of 2647274057 in words is "two billion, six hundred forty-seven million, two hundred seventy-four thousand, fifty-seven".