20783270652593 has 2 divisors, whose sum is σ = 20783270652594. Its totient is φ = 20783270652592.

The previous prime is 20783270652523. The next prime is 20783270652689. The reversal of 20783270652593 is 39525607238702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20575232496049 + 208038156544 = 4535993^2 + 456112^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20783270652593 is a prime.

It is not a weakly prime, because it can be changed into another prime (20783270652503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10391635326296 + 10391635326297.

It is an arithmetic number, because the mean of its divisors is an integer number (10391635326297).

Almost surely, 2^{20783270652593} is an apocalyptic number.

It is an amenable number.

20783270652593 is a deficient number, since it is larger than the sum of its proper divisors (1).

20783270652593 is an equidigital number, since it uses as much as digits as its factorization.

20783270652593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38102400, while the sum is 59.

The spelling of 20783270652593 in words is "twenty trillion, seven hundred eighty-three billion, two hundred seventy million, six hundred fifty-two thousand, five hundred ninety-three".