29672820481 has 4 divisors (see below), whose sum is σ = 29721705472. Its totient is φ = 29623935492.

The previous prime is 29672820451. The next prime is 29672820509. The reversal of 29672820481 is 18402827692.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29672820481 - 2¹¹ = 29672818433 is a prime.

It is a super-2 number, since 2×29672820481² (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 (29672820451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24441585 + ... + 24442798.

It is an arithmetic number, because the mean of its divisors is an integer number (7430426368).

Almost surely, 2^29672820481 is an apocalyptic number.

It is an amenable number.

29672820481 is a deficient number, since it is larger than the sum of its proper divisors (48884991).

29672820481 is an equidigital number, since it uses as much as digits as its factorization.

29672820481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48884990.

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 29672820481 in words is "twenty-nine billion, six hundred seventy-two million, eight hundred twenty thousand, four hundred eighty-one".