1256094983427 has 4 divisors (see below), whose sum is σ = 1674793311240. Its totient is φ = 837396655616.

The previous prime is 1256094983401. The next prime is 1256094983503. The reversal of 1256094983427 is 7243894906521.

It is a happy number.

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 1256094983427 - 2¹² = 1256094979331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1256094983827) 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, 209349163902 + ... + 209349163907.

It is an arithmetic number, because the mean of its divisors is an integer number (418698327810).

It is a 1-persistent number, because it is pandigital, but 2⋅1256094983427 = 2512189966854 is not.

Almost surely, 2^{1256094983427} is an apocalyptic number.

1256094983427 is a deficient number, since it is larger than the sum of its proper divisors (418698327813).

1256094983427 is an equidigital number, since it uses as much as digits as its factorization.

1256094983427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418698327812.

The product of its (nonzero) digits is 26127360, while the sum is 60.

The spelling of 1256094983427 in words is "one trillion, two hundred fifty-six billion, ninety-four million, nine hundred eighty-three thousand, four hundred twenty-seven".