1353621431651 has 2 divisors, whose sum is σ = 1353621431652. Its totient is φ = 1353621431650.

The previous prime is 1353621431627. The next prime is 1353621431707. The reversal of 1353621431651 is 1561341263531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1353621431651 - 2⁶ = 1353621431587 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1353621431599 and 1353621431608.

It is not a weakly prime, because it can be changed into another prime (1353621461651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 676810715825 + 676810715826.

It is an arithmetic number, because the mean of its divisors is an integer number (676810715826).

Almost surely, 2^{1353621431651} is an apocalyptic number.

1353621431651 is a deficient number, since it is larger than the sum of its proper divisors (1).

1353621431651 is an equidigital number, since it uses as much as digits as its factorization.

1353621431651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 41.

The spelling of 1353621431651 in words is "one trillion, three hundred fifty-three billion, six hundred twenty-one million, four hundred thirty-one thousand, six hundred fifty-one".