7249361915 has 4 divisors (see below), whose sum is σ = 8699234304. Its totient is φ = 5799489528.

The previous prime is 7249361893. The next prime is 7249361947. The reversal of 7249361915 is 5191639427.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7249361915 - 2⁶ = 7249361851 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7249361915.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 724936187 + ... + 724936196.

It is an arithmetic number, because the mean of its divisors is an integer number (2174808576).

Almost surely, 2^7249361915 is an apocalyptic number.

7249361915 is a deficient number, since it is larger than the sum of its proper divisors (1449872389).

7249361915 is a wasteful number, since it uses less digits than its factorization.

7249361915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449872388.

The product of its digits is 408240, while the sum is 47.

The square root of 7249361915 is about 85143.1847830465. The cubic root of 7249361915 is about 1935.3815382269.

It can be divided in two parts, 724 and 9361915, that added together give a palindrome (9362639).

The spelling of 7249361915 in words is "seven billion, two hundred forty-nine million, three hundred sixty-one thousand, nine hundred fifteen".