29531320672 has 48 divisors (see below), whose sum is σ = 69334417152. Its totient is φ = 12106005120.

The previous prime is 29531320661. The next prime is 29531320691. The reversal of 29531320672 is 27602313592.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2860854 + ... + 2871157.

It is an arithmetic number, because the mean of its divisors is an integer number (1444467024).

Almost surely, 2^29531320672 is an apocalyptic number.

It is an amenable number.

29531320672 is an abundant number, since it is smaller than the sum of its proper divisors (39803096480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29531320672 is a wasteful number, since it uses less digits than its factorization.

29531320672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5732051 (or 5732043 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 40.

The spelling of 29531320672 in words is "twenty-nine billion, five hundred thirty-one million, three hundred twenty thousand, six hundred seventy-two".