2599121047 has 2 divisors, whose sum is σ = 2599121048. Its totient is φ = 2599121046.

The previous prime is 2599120949. The next prime is 2599121051. The reversal of 2599121047 is 7401219952.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2599121047 - 2¹¹ = 2599118999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2599121087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1299560523 + 1299560524.

It is an arithmetic number, because the mean of its divisors is an integer number (1299560524).

Almost surely, 2^2599121047 is an apocalyptic number.

2599121047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2599121047 is an equidigital number, since it uses as much as digits as its factorization.

2599121047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 2599121047 is about 50981.5755641192. The cubic root of 2599121047 is about 1374.9138982118.

The spelling of 2599121047 in words is "two billion, five hundred ninety-nine million, one hundred twenty-one thousand, forty-seven".