9926737493 has 2 divisors, whose sum is σ = 9926737494. Its totient is φ = 9926737492.

The previous prime is 9926737441. The next prime is 9926737517. The reversal of 9926737493 is 3947376299.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9892888369 + 33849124 = 99463^2 + 5818^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9926737493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9926737423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4963368746 + 4963368747.

It is an arithmetic number, because the mean of its divisors is an integer number (4963368747).

Almost surely, 2^9926737493 is an apocalyptic number.

It is an amenable number.

9926737493 is a deficient number, since it is larger than the sum of its proper divisors (1).

9926737493 is an equidigital number, since it uses as much as digits as its factorization.

9926737493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15431472, while the sum is 59.

The square root of 9926737493 is about 99633.0140716419. The cubic root of 9926737493 is about 2149.1604793701.

The spelling of 9926737493 in words is "nine billion, nine hundred twenty-six million, seven hundred thirty-seven thousand, four hundred ninety-three".