29426314681 has 3 divisors (see below), whose sum is σ = 29426486223. Its totient is φ = 29426143140.

The previous prime is 29426314651. The next prime is 29426314699. The reversal of 29426314681 is 18641362492.

The square root of 29426314681 is 171541.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 6255386281 + 23170928400 = 79091^2 + 152220^2 .

It is not a de Polignac number, because 29426314681 - 2⁵ = 29426314649 is a prime.

It is a super-2 number, since 2×29426314681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29426314651) 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 2 ways as a sum of consecutive naturals, for example, 85771 + ... + 257311.

It is an arithmetic number, because the mean of its divisors is an integer number (9808828741).

Almost surely, 2^29426314681 is an apocalyptic number.

29426314681 is the 171541-st square number.

29426314681 is the 85771-st centered octagonal number.

It is an amenable number.

29426314681 is a deficient number, since it is larger than the sum of its proper divisors (171542).

29426314681 is an frugal number, since it uses more digits than its factorization.

29426314681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343082 (or 171541 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The spelling of 29426314681 in words is "twenty-nine billion, four hundred twenty-six million, three hundred fourteen thousand, six hundred eighty-one".