1146634631621 has 2 divisors, whose sum is σ = 1146634631622. Its totient is φ = 1146634631620.

The previous prime is 1146634631617. The next prime is 1146634631627. The reversal of 1146634631621 is 1261364366411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 952109529121 + 194525102500 = 975761^2 + 441050^2 .

It is a cyclic number.

It is not a de Polignac number, because 1146634631621 - 2² = 1146634631617 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1146634631627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573317315810 + 573317315811.

It is an arithmetic number, because the mean of its divisors is an integer number (573317315811).

Almost surely, 2^{1146634631621} is an apocalyptic number.

It is an amenable number.

1146634631621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1146634631621 is an equidigital number, since it uses as much as digits as its factorization.

1146634631621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 44.

The spelling of 1146634631621 in words is "one trillion, one hundred forty-six billion, six hundred thirty-four million, six hundred thirty-one thousand, six hundred twenty-one".