2801813551 has 2 divisors, whose sum is σ = 2801813552. Its totient is φ = 2801813550.

The previous prime is 2801813513. The next prime is 2801813603. The reversal of 2801813551 is 1553181082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2801813551 - 2⁹ = 2801813039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2801813501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1400906775 + 1400906776.

It is an arithmetic number, because the mean of its divisors is an integer number (1400906776).

Almost surely, 2^2801813551 is an apocalyptic number.

2801813551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2801813551 is an equidigital number, since it uses as much as digits as its factorization.

2801813551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 34.

The square root of 2801813551 is about 52932.1598935845. The cubic root of 2801813551 is about 1409.7639815875.

The spelling of 2801813551 in words is "two billion, eight hundred one million, eight hundred thirteen thousand, five hundred fifty-one".