1933532681651 has 2 divisors, whose sum is σ = 1933532681652. Its totient is φ = 1933532681650.

The previous prime is 1933532681627. The next prime is 1933532681681. The reversal of 1933532681651 is 1561862353391.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1933532681651 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1933532681593 and 1933532681602.

It is not a weakly prime, because it can be changed into another prime (1933532681611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 966766340825 + 966766340826.

It is an arithmetic number, because the mean of its divisors is an integer number (966766340826).

Almost surely, 2^{1933532681651} is an apocalyptic number.

1933532681651 is a deficient number, since it is larger than the sum of its proper divisors (1).

1933532681651 is an equidigital number, since it uses as much as digits as its factorization.

1933532681651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3499200, while the sum is 53.

The spelling of 1933532681651 in words is "one trillion, nine hundred thirty-three billion, five hundred thirty-two million, six hundred eighty-one thousand, six hundred fifty-one".