29965431612 has 12 divisors (see below), whose sum is σ = 69919340456. Its totient is φ = 9988477200.

The previous prime is 29965431581. The next prime is 29965431649. The reversal of 29965431612 is 21613456992.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1248559639 + ... + 1248559662.

Almost surely, 2^29965431612 is an apocalyptic number.

It is an amenable number.

29965431612 is an abundant number, since it is smaller than the sum of its proper divisors (39953908844).

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

29965431612 is a wasteful number, since it uses less digits than its factorization.

29965431612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2497119308 (or 2497119306 counting only the distinct ones).

The product of its digits is 699840, while the sum is 48.

The spelling of 29965431612 in words is "twenty-nine billion, nine hundred sixty-five million, four hundred thirty-one thousand, six hundred twelve".