2745743551 has 2 divisors, whose sum is σ = 2745743552. Its totient is φ = 2745743550.

The previous prime is 2745743503. The next prime is 2745743557. The reversal of 2745743551 is 1553475472.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2745743551 - 2¹¹ = 2745741503 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2745743498 and 2745743507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2745743557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1372871775 + 1372871776.

It is an arithmetic number, because the mean of its divisors is an integer number (1372871776).

Almost surely, 2^2745743551 is an apocalyptic number.

2745743551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2745743551 is an equidigital number, since it uses as much as digits as its factorization.

2745743551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 588000, while the sum is 43.

The square root of 2745743551 is about 52399.8430436581. The cubic root of 2745743551 is about 1400.2964594972.

The spelling of 2745743551 in words is "two billion, seven hundred forty-five million, seven hundred forty-three thousand, five hundred fifty-one".