29409685620 has 48 divisors (see below), whose sum is σ = 94110995328. Its totient is φ = 6722213760.

The previous prime is 29409685607. The next prime is 29409685661. The reversal of 29409685620 is 2658690492.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35011111 + ... + 35011950.

It is an arithmetic number, because the mean of its divisors is an integer number (1960645736).

Almost surely, 2^29409685620 is an apocalyptic number.

29409685620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29409685620 is an abundant number, since it is smaller than the sum of its proper divisors (64701309708).

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

29409685620 is a wasteful number, since it uses less digits than its factorization.

29409685620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70023080 (or 70023078 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 51.

The spelling of 29409685620 in words is "twenty-nine billion, four hundred nine million, six hundred eighty-five thousand, six hundred twenty".