1097973861623 has 2 divisors, whose sum is σ = 1097973861624. Its totient is φ = 1097973861622.

The previous prime is 1097973861581. The next prime is 1097973861653. The reversal of 1097973861623 is 3261683797901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1097973861623 - 2¹⁴ = 1097973845239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1097973861653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548986930811 + 548986930812.

It is an arithmetic number, because the mean of its divisors is an integer number (548986930812).

Almost surely, 2^{1097973861623} is an apocalyptic number.

1097973861623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097973861623 is an equidigital number, since it uses as much as digits as its factorization.

1097973861623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20575296, while the sum is 62.

The spelling of 1097973861623 in words is "one trillion, ninety-seven billion, nine hundred seventy-three million, eight hundred sixty-one thousand, six hundred twenty-three".