1255944940427 has 8 divisors (see below), whose sum is σ = 1297237066752. Its totient is φ = 1214701425000.

The previous prime is 1255944940421. The next prime is 1255944940441. The reversal of 1255944940427 is 7240494495521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255944940427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1255944940421) 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, 12100199 + ... + 12203552.

It is an arithmetic number, because the mean of its divisors is an integer number (162154633344).

Almost surely, 2^{1255944940427} is an apocalyptic number.

1255944940427 is a deficient number, since it is larger than the sum of its proper divisors (41292126325).

1255944940427 is a wasteful number, since it uses less digits than its factorization.

1255944940427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24305449.

The product of its (nonzero) digits is 14515200, while the sum is 56.

The spelling of 1255944940427 in words is "one trillion, two hundred fifty-five billion, nine hundred forty-four million, nine hundred forty thousand, four hundred twenty-seven".