20429102724 has 12 divisors (see below), whose sum is σ = 47667906384. Its totient is φ = 6809700904.

The previous prime is 20429102717. The next prime is 20429102731. The reversal of 20429102724 is 42720192402.

It is an interprime number because it is at equal distance from previous prime (20429102717) and next prime (20429102731).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 851212602 + ... + 851212625.

It is an arithmetic number, because the mean of its divisors is an integer number (3972325532).

Almost surely, 2^20429102724 is an apocalyptic number.

It is an amenable number.

20429102724 is an abundant number, since it is smaller than the sum of its proper divisors (27238803660).

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

20429102724 is a wasteful number, since it uses less digits than its factorization.

20429102724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702425234 (or 1702425232 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The spelling of 20429102724 in words is "twenty billion, four hundred twenty-nine million, one hundred two thousand, seven hundred twenty-four".