1612402457251 has 2 divisors, whose sum is σ = 1612402457252. Its totient is φ = 1612402457250.

The previous prime is 1612402457231. The next prime is 1612402457279. The reversal of 1612402457251 is 1527542042161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1612402457251 - 2¹¹ = 1612402455203 is a prime.

It is not a weakly prime, because it can be changed into another prime (1612402457231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806201228625 + 806201228626.

It is an arithmetic number, because the mean of its divisors is an integer number (806201228626).

Almost surely, 2^{1612402457251} is an apocalyptic number.

1612402457251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1612402457251 is an equidigital number, since it uses as much as digits as its factorization.

1612402457251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 1612402457251 in words is "one trillion, six hundred twelve billion, four hundred two million, four hundred fifty-seven thousand, two hundred fifty-one".