9926812541 has 2 divisors, whose sum is σ = 9926812542. Its totient is φ = 9926812540.

The previous prime is 9926812517. The next prime is 9926812579. The reversal of 9926812541 is 1452186299.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9862476100 + 64336441 = 99310^2 + 8021^2 .

It is a cyclic number.

It is not a de Polignac number, because 9926812541 - 2⁶ = 9926812477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9926812501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4963406270 + 4963406271.

It is an arithmetic number, because the mean of its divisors is an integer number (4963406271).

Almost surely, 2^9926812541 is an apocalyptic number.

It is an amenable number.

9926812541 is a deficient number, since it is larger than the sum of its proper divisors (1).

9926812541 is an equidigital number, since it uses as much as digits as its factorization.

9926812541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 47.

The square root of 9926812541 is about 99633.3906930804. The cubic root of 9926812541 is about 2149.1658953754.

The spelling of 9926812541 in words is "nine billion, nine hundred twenty-six million, eight hundred twelve thousand, five hundred forty-one".