19700052736 has 144 divisors (see below), whose sum is σ = 50503348224. Its totient is φ = 7454380032.

The previous prime is 19700052733. The next prime is 19700052767. The reversal of 19700052736 is 63725000791.

It is not an unprimeable number, because it can be changed into a prime (19700052733) 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, 517425 + ... + 554191.

It is an arithmetic number, because the mean of its divisors is an integer number (350717696).

Almost surely, 2^19700052736 is an apocalyptic number.

19700052736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19700052736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25251674112).

19700052736 is an abundant number, since it is smaller than the sum of its proper divisors (30803295488).

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

19700052736 is a wasteful number, since it uses less digits than its factorization.

19700052736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36826 (or 36812 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 40.

The spelling of 19700052736 in words is "nineteen billion, seven hundred million, fifty-two thousand, seven hundred thirty-six".