29720462972 has 48 divisors (see below), whose sum is σ = 56313212928. Its totient is φ = 13694391360.

The previous prime is 29720462971. The next prime is 29720462977. The reversal of 29720462972 is 27926402792.

It is a self number, because there is not a number n which added to its sum of digits gives 29720462972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29720462971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146723 + ... + 284549.

It is an arithmetic number, because the mean of its divisors is an integer number (1173191936).

Almost surely, 2^29720462972 is an apocalyptic number.

It is an amenable number.

29720462972 is a deficient number, since it is larger than the sum of its proper divisors (26592749956).

29720462972 is a wasteful number, since it uses less digits than its factorization.

29720462972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137946 (or 137944 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 29720462972 in words is "twenty-nine billion, seven hundred twenty million, four hundred sixty-two thousand, nine hundred seventy-two".