2749201919 has 2 divisors, whose sum is σ = 2749201920. Its totient is φ = 2749201918.

The previous prime is 2749201877. The next prime is 2749201981. The reversal of 2749201919 is 9191029472.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2749201919 is a prime.

It is a super-2 number, since 2×2749201919² = 15116222382866565122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2749201919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2749201999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1374600959 + 1374600960.

It is an arithmetic number, because the mean of its divisors is an integer number (1374600960).

Almost surely, 2^2749201919 is an apocalyptic number.

2749201919 is a deficient number, since it is larger than the sum of its proper divisors (1).

2749201919 is an equidigital number, since it uses as much as digits as its factorization.

2749201919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 2749201919 is about 52432.8324525769. The cubic root of 2749201919 is about 1400.8841216480.

The spelling of 2749201919 in words is "two billion, seven hundred forty-nine million, two hundred one thousand, nine hundred nineteen".