2602640023 has 2 divisors, whose sum is σ = 2602640024. Its totient is φ = 2602640022.

The previous prime is 2602640021. The next prime is 2602640099. The reversal of 2602640023 is 3200462062.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2602640023 - 2¹ = 2602640021 is a prime.

Together with 2602640021, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2602640023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2602640021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1301320011 + 1301320012.

It is an arithmetic number, because the mean of its divisors is an integer number (1301320012).

Almost surely, 2^2602640023 is an apocalyptic number.

2602640023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2602640023 is an equidigital number, since it uses as much as digits as its factorization.

2602640023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 2602640023 is about 51016.0761231202. The cubic root of 2602640023 is about 1375.5341216164.

It can be divided in two parts, 26026 and 40023, that added together give a square (66049 = 257²).

The spelling of 2602640023 in words is "two billion, six hundred two million, six hundred forty thousand, twenty-three".