2321256640426 has 8 divisors (see below), whose sum is σ = 3555967619520. Its totient is φ = 1135934100588.

The previous prime is 2321256640393. The next prime is 2321256640481. The reversal of 2321256640426 is 6240466521232.

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

It is a super-2 number, since 2×2321256640426² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12347109696 + ... + 12347109883.

It is an arithmetic number, because the mean of its divisors is an integer number (444495952440).

Almost surely, 2^{2321256640426} is an apocalyptic number.

2321256640426 is a deficient number, since it is larger than the sum of its proper divisors (1234710979094).

2321256640426 is a wasteful number, since it uses less digits than its factorization.

2321256640426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24694219628.

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 2321256640426 in words is "two trillion, three hundred twenty-one billion, two hundred fifty-six million, six hundred forty thousand, four hundred twenty-six".