251212426363 has 2 divisors, whose sum is σ = 251212426364. Its totient is φ = 251212426362.

The previous prime is 251212426357. The next prime is 251212426373. The reversal of 251212426363 is 363624212152.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-251212426363 is a prime.

It is not a weakly prime, because it can be changed into another prime (251212426373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125606213181 + 125606213182.

It is an arithmetic number, because the mean of its divisors is an integer number (125606213182).

Almost surely, 2^251212426363 is an apocalyptic number.

251212426363 is a deficient number, since it is larger than the sum of its proper divisors (1).

251212426363 is an equidigital number, since it uses as much as digits as its factorization.

251212426363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 37.

The spelling of 251212426363 in words is "two hundred fifty-one billion, two hundred twelve million, four hundred twenty-six thousand, three hundred sixty-three".