29477359968 has 48 divisors (see below), whose sum is σ = 88432081920. Its totient is φ = 8422102656.

The previous prime is 29477359903. The next prime is 29477359987. The reversal of 29477359968 is 86995377492.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×29477359968² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21931888 + ... + 21933231.

It is an arithmetic number, because the mean of its divisors is an integer number (1842335040).

Almost surely, 2^29477359968 is an apocalyptic number.

29477359968 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

29477359968 is an abundant number, since it is smaller than the sum of its proper divisors (58954721952).

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

29477359968 is a wasteful number, since it uses less digits than its factorization.

29477359968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43865139 (or 43865131 counting only the distinct ones).

The product of its digits is 205752960, while the sum is 69.

The spelling of 29477359968 in words is "twenty-nine billion, four hundred seventy-seven million, three hundred fifty-nine thousand, nine hundred sixty-eight".