2451111797 has 2 divisors, whose sum is σ = 2451111798. Its totient is φ = 2451111796.

The previous prime is 2451111779. The next prime is 2451111823. The reversal of 2451111797 is 7971111542.

Together with previous prime (2451111779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2161227121 + 289884676 = 46489^2 + 17026^2 .

It is a cyclic number.

It is not a de Polignac number, because 2451111797 - 2¹⁰ = 2451110773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2451111797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2451111737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1225555898 + 1225555899.

It is an arithmetic number, because the mean of its divisors is an integer number (1225555899).

Almost surely, 2^2451111797 is an apocalyptic number.

It is an amenable number.

2451111797 is a deficient number, since it is larger than the sum of its proper divisors (1).

2451111797 is an equidigital number, since it uses as much as digits as its factorization.

2451111797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 38.

The square root of 2451111797 is about 49508.7042549086. The cubic root of 2451111797 is about 1348.3036392208.

The spelling of 2451111797 in words is "two billion, four hundred fifty-one million, one hundred eleven thousand, seven hundred ninety-seven".