15794451906433 has 2 divisors, whose sum is σ = 15794451906434. Its totient is φ = 15794451906432.

The previous prime is 15794451906377. The next prime is 15794451906451. The reversal of 15794451906433 is 33460915449751.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11437430233329 + 4357021673104 = 3381927^2 + 2087348^2 .

It is a cyclic number.

It is not a de Polignac number, because 15794451906433 - 2¹³ = 15794451898241 is a prime.

It is a super-2 number, since 2×15794451906433² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15794451906733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7897225953216 + 7897225953217.

It is an arithmetic number, because the mean of its divisors is an integer number (7897225953217).

Almost surely, 2^{15794451906433} is an apocalyptic number.

It is an amenable number.

15794451906433 is a deficient number, since it is larger than the sum of its proper divisors (1).

15794451906433 is an equidigital number, since it uses as much as digits as its factorization.

15794451906433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48988800, while the sum is 61.

The spelling of 15794451906433 in words is "fifteen trillion, seven hundred ninety-four billion, four hundred fifty-one million, nine hundred six thousand, four hundred thirty-three".