15794451916433 has 16 divisors (see below), whose sum is σ = 17019683791056. Its totient is φ = 14602755747840.

The previous prime is 15794451916429. The next prime is 15794451916457. The reversal of 15794451916433 is 33461915449751.

It can be written as a sum of positive squares in 8 ways, for example, as 107212369489 + 15687239546944 = 327433^2 + 3960712^2 .

It is a cyclic number.

It is not a de Polignac number, because 15794451916433 - 2² = 15794451916429 is a prime.

It is a super-2 number, since 2×15794451916433² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15794451906433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9050216 + ... + 10653417.

It is an arithmetic number, because the mean of its divisors is an integer number (1063730236941).

Almost surely, 2^{15794451916433} is an apocalyptic number.

It is an amenable number.

15794451916433 is a deficient number, since it is larger than the sum of its proper divisors (1225231874623).

15794451916433 is a wasteful number, since it uses less digits than its factorization.

15794451916433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19704484.

The product of its digits is 48988800, while the sum is 62.

The spelling of 15794451916433 in words is "fifteen trillion, seven hundred ninety-four billion, four hundred fifty-one million, nine hundred sixteen thousand, four hundred thirty-three".