20287629120 has 112 divisors (see below), whose sum is σ = 70269006528. Its totient is φ = 4918210560.

The previous prime is 20287629091. The next prime is 20287629127. The reversal of 20287629120 is 2192678202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20287629127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 950029 + ... + 971148.

It is an arithmetic number, because the mean of its divisors is an integer number (627401844).

Almost surely, 2^20287629120 is an apocalyptic number.

20287629120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20287629120 is an abundant number, since it is smaller than the sum of its proper divisors (49981377408).

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

20287629120 is a wasteful number, since it uses less digits than its factorization.

20287629120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921208 (or 1921198 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 20287629120 in words is "twenty billion, two hundred eighty-seven million, six hundred twenty-nine thousand, one hundred twenty".