29999278080 has 144 divisors (see below), whose sum is σ = 103972426740. Its totient is φ = 7999782912.

The previous prime is 29999278037. The next prime is 29999278109. The reversal of 29999278080 is 8087299992.

It can be written as a sum of positive squares in 2 ways, for example, as 29760390144 + 238887936 = 172512^2 + 15456^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 29999277999 and 29999278017.

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 11 ways as a sum of consecutive naturals, for example, 70597 + ... + 254916.

Almost surely, 2^29999278080 is an apocalyptic number.

29999278080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29999278080 is an abundant number, since it is smaller than the sum of its proper divisors (73973148660).

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

29999278080 is a wasteful number, since it uses less digits than its factorization.

29999278080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325546 (or 325523 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 63.

The spelling of 29999278080 in words is "twenty-nine billion, nine hundred ninety-nine million, two hundred seventy-eight thousand, eighty".