2499103729 has 4 divisors (see below), whose sum is σ = 2523366976. Its totient is φ = 2474840484.

The previous prime is 2499103727. The next prime is 2499103771. The reversal of 2499103729 is 9273019942.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9273019942 = 2 ⋅4636509971.

It is a cyclic number.

It is not a de Polignac number, because 2499103729 - 2¹ = 2499103727 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2499103727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12131469 + ... + 12131674.

It is an arithmetic number, because the mean of its divisors is an integer number (630841744).

Almost surely, 2^2499103729 is an apocalyptic number.

It is an amenable number.

2499103729 is a deficient number, since it is larger than the sum of its proper divisors (24263247).

2499103729 is a wasteful number, since it uses less digits than its factorization.

2499103729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24263246.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 2499103729 is about 49991.0364865543. The cubic root of 2499103729 is about 1357.0465986586.

The spelling of 2499103729 in words is "two billion, four hundred ninety-nine million, one hundred three thousand, seven hundred twenty-nine".