7279512709249 has 4 divisors (see below), whose sum is σ = 7941286591920. Its totient is φ = 6617738826580.

The previous prime is 7279512709223. The next prime is 7279512709279. The reversal of 7279512709249 is 9429072159727.

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.

It is a cyclic number.

It is not a de Polignac number, because 7279512709249 - 2¹⁵ = 7279512676481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7279512709279) 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, 330886941319 + ... + 330886941340.

It is an arithmetic number, because the mean of its divisors is an integer number (1985321647980).

Almost surely, 2^{7279512709249} is an apocalyptic number.

It is an amenable number.

7279512709249 is a deficient number, since it is larger than the sum of its proper divisors (661773882671).

7279512709249 is a wasteful number, since it uses less digits than its factorization.

7279512709249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661773882670.

The product of its (nonzero) digits is 40007520, while the sum is 64.

The spelling of 7279512709249 in words is "seven trillion, two hundred seventy-nine billion, five hundred twelve million, seven hundred nine thousand, two hundred forty-nine".