20029291012 has 12 divisors (see below), whose sum is σ = 35398302156. Its totient is φ = 9915490400.

The previous prime is 20029291001. The next prime is 20029291021. The reversal of 20029291012 is 21019292002.

It can be written as a sum of positive squares in 2 ways, for example, as 17493765696 + 2535525316 = 132264^2 + 50354^2 .

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, 24788323 + ... + 24789130.

It is an arithmetic number, because the mean of its divisors is an integer number (2949858513).

Almost surely, 2^20029291012 is an apocalyptic number.

It is an amenable number.

20029291012 is a deficient number, since it is larger than the sum of its proper divisors (15369011144).

20029291012 is a wasteful number, since it uses less digits than its factorization.

20029291012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49577558 (or 49577556 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 20029291012 in words is "twenty billion, twenty-nine million, two hundred ninety-one thousand, twelve".