29325821813 has 4 divisors (see below), whose sum is σ = 30600857568. Its totient is φ = 28050786060.

The previous prime is 29325821803. The next prime is 29325821839. The reversal of 29325821813 is 31812852392.

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 29325821813 - 2³² = 25030854517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29325821803) 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, 637517843 + ... + 637517888.

It is an arithmetic number, because the mean of its divisors is an integer number (7650214392).

Almost surely, 2^29325821813 is an apocalyptic number.

29325821813 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

29325821813 is a deficient number, since it is larger than the sum of its proper divisors (1275035755).

29325821813 is a wasteful number, since it uses less digits than its factorization.

29325821813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275035754.

The product of its digits is 207360, while the sum is 44.

The spelling of 29325821813 in words is "twenty-nine billion, three hundred twenty-five million, eight hundred twenty-one thousand, eight hundred thirteen".