2499378069 has 8 divisors (see below), whose sum is σ = 3440004352. Its totient is φ = 1612501920.

The previous prime is 2499378067. The next prime is 2499378073. The reversal of 2499378069 is 9608739942.

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

It is not a de Polignac number, because 2499378069 - 2¹ = 2499378067 is a prime.

It is a super-2 number, since 2×2499378069² = 12493781463596337522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2499378061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13437424 + ... + 13437609.

It is an arithmetic number, because the mean of its divisors is an integer number (430000544).

Almost surely, 2^2499378069 is an apocalyptic number.

It is an amenable number.

2499378069 is a deficient number, since it is larger than the sum of its proper divisors (940626283).

2499378069 is a wasteful number, since it uses less digits than its factorization.

2499378069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26875067.

The product of its (nonzero) digits is 5878656, while the sum is 57.

The square root of 2499378069 is about 49993.7803031537. The cubic root of 2499378069 is about 1357.0962535993.

The spelling of 2499378069 in words is "two billion, four hundred ninety-nine million, three hundred seventy-eight thousand, sixty-nine".