29980948980 has 24 divisors (see below), whose sum is σ = 83946657312. Its totient is φ = 7994919712.

The previous prime is 29980948969. The next prime is 29980949023. The reversal of 29980948980 is 8984908992.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249841182 + ... + 249841301.

It is an arithmetic number, because the mean of its divisors is an integer number (3497777388).

Almost surely, 2^29980948980 is an apocalyptic number.

29980948980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29980948980 is an abundant number, since it is smaller than the sum of its proper divisors (53965708332).

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

29980948980 is a wasteful number, since it uses less digits than its factorization.

29980948980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499682495 (or 499682493 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 66.

The spelling of 29980948980 in words is "twenty-nine billion, nine hundred eighty million, nine hundred forty-eight thousand, nine hundred eighty".