20738867502 has 8 divisors (see below), whose sum is σ = 41477735016. Its totient is φ = 6912955832.

The previous prime is 20738867491. The next prime is 20738867503. The reversal of 20738867502 is 20576883702.

It is a sphenic number, since it is the product of 3 distinct primes.

20738867502 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20738867503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1728238953 + ... + 1728238964.

It is an arithmetic number, because the mean of its divisors is an integer number (5184716877).

Almost surely, 2^20738867502 is an apocalyptic number.

20738867502 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20738867502 is a wasteful number, since it uses less digits than its factorization.

20738867502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3456477922.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 20738867502 in words is "twenty billion, seven hundred thirty-eight million, eight hundred sixty-seven thousand, five hundred two".