20029649574 has 48 divisors (see below), whose sum is σ = 44778525120. Its totient is φ = 5966703600.

The previous prime is 20029649527. The next prime is 20029649587. The reversal of 20029649574 is 47594692002.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

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 23 ways as a sum of consecutive naturals, for example, 190972 + ... + 276639.

It is an arithmetic number, because the mean of its divisors is an integer number (932885940).

Almost surely, 2^20029649574 is an apocalyptic number.

20029649574 is an abundant number, since it is smaller than the sum of its proper divisors (24748875546).

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

20029649574 is a wasteful number, since it uses less digits than its factorization.

20029649574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467697 (or 467686 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 20029649574 in words is "twenty billion, twenty-nine million, six hundred forty-nine thousand, five hundred seventy-four".