29431486660 has 24 divisors (see below), whose sum is σ = 61818969240. Its totient is φ = 11770147584.

The previous prime is 29431486631. The next prime is 29431486673. The reversal of 29431486660 is 6668413492.

It can be written as a sum of positive squares in 4 ways, for example, as 185014404 + 29246472256 = 13602^2 + 171016^2 .

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, 52719 + ... + 248278.

It is an arithmetic number, because the mean of its divisors is an integer number (2575790385).

Almost surely, 2^29431486660 is an apocalyptic number.

29431486660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29431486660 is an abundant number, since it is smaller than the sum of its proper divisors (32387482580).

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

29431486660 is a wasteful number, since it uses less digits than its factorization.

29431486660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305895 (or 305893 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 49.

The spelling of 29431486660 in words is "twenty-nine billion, four hundred thirty-one million, four hundred eighty-six thousand, six hundred sixty".