29951434972 has 24 divisors (see below), whose sum is σ = 55530936720. Its totient is φ = 14086490880.

The previous prime is 29951434949. The next prime is 29951434973. The reversal of 29951434972 is 27943415992.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29951434973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12654 + ... + 245077.

It is an arithmetic number, because the mean of its divisors is an integer number (2313789030).

Almost surely, 2^29951434972 is an apocalyptic number.

It is an amenable number.

29951434972 is a deficient number, since it is larger than the sum of its proper divisors (25579501748).

29951434972 is a wasteful number, since it uses less digits than its factorization.

29951434972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259461 (or 259459 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 55.

The spelling of 29951434972 in words is "twenty-nine billion, nine hundred fifty-one million, four hundred thirty-four thousand, nine hundred seventy-two".