12479259761 has 8 divisors (see below), whose sum is σ = 12547135464. Its totient is φ = 12411417600.

The previous prime is 12479259739. The next prime is 12479259773. The reversal of 12479259761 is 16795297421.

It can be written as a sum of positive squares in 4 ways, for example, as 7268585536 + 5210674225 = 85256^2 + 72185^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12479259761 - 2²⁶ = 12412150897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12479259701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1206311 + ... + 1216611.

It is an arithmetic number, because the mean of its divisors is an integer number (1568391933).

Almost surely, 2^12479259761 is an apocalyptic number.

It is an amenable number.

12479259761 is a deficient number, since it is larger than the sum of its proper divisors (67875703).

12479259761 is a wasteful number, since it uses less digits than its factorization.

12479259761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16771.

The product of its digits is 1905120, while the sum is 53.

The spelling of 12479259761 in words is "twelve billion, four hundred seventy-nine million, two hundred fifty-nine thousand, seven hundred sixty-one".