2619797823 has 14 divisors (see below), whose sum is σ = 3927900984. Its totient is φ = 1746531396.

The previous prime is 2619797771. The next prime is 2619797837. The reversal of 2619797823 is 3287979162.

It is not a de Polignac number, because 2619797823 - 2⁶ = 2619797759 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2619797823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2619797863) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1796115 + ... + 1797572.

It is an arithmetic number, because the mean of its divisors is an integer number (280564356).

Almost surely, 2^2619797823 is an apocalyptic number.

2619797823 is a deficient number, since it is larger than the sum of its proper divisors (1308103161).

2619797823 is an frugal number, since it uses more digits than its factorization.

2619797823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3593705 (or 3593690 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 2619797823 is about 51183.9606029076. The cubic root of 2619797823 is about 1378.5502213040.

The spelling of 2619797823 in words is "two billion, six hundred nineteen million, seven hundred ninety-seven thousand, eight hundred twenty-three".