2591065390 has 8 divisors (see below), whose sum is σ = 4663917720. Its totient is φ = 1036426152.

The previous prime is 2591065381. The next prime is 2591065423. The reversal of 2591065390 is 935601952.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129553260 + ... + 129553279.

It is an arithmetic number, because the mean of its divisors is an integer number (582989715).

Almost surely, 2^2591065390 is an apocalyptic number.

2591065390 is a deficient number, since it is larger than the sum of its proper divisors (2072852330).

2591065390 is a wasteful number, since it uses less digits than its factorization.

2591065390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259106546.

The product of its (nonzero) digits is 72900, while the sum is 40.

The square root of 2591065390 is about 50902.5086808106. The cubic root of 2591065390 is about 1373.4919691516.

The spelling of 2591065390 in words is "two billion, five hundred ninety-one million, sixty-five thousand, three hundred ninety".