7256406353879 has 4 divisors (see below), whose sum is σ = 7269159265440. Its totient is φ = 7243653442320.

The previous prime is 7256406353813. The next prime is 7256406353881. The reversal of 7256406353879 is 9783536046527.

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 7256406353879 - 2¹² = 7256406349783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7256406353179) 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, 6376454927 + ... + 6376456064.

It is an arithmetic number, because the mean of its divisors is an integer number (1817289816360).

Almost surely, 2^{7256406353879} is an apocalyptic number.

7256406353879 is a deficient number, since it is larger than the sum of its proper divisors (12752911561).

7256406353879 is a wasteful number, since it uses less digits than its factorization.

7256406353879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12752911560.

The product of its (nonzero) digits is 228614400, while the sum is 65.

The spelling of 7256406353879 in words is "seven trillion, two hundred fifty-six billion, four hundred six million, three hundred fifty-three thousand, eight hundred seventy-nine".