19975637080 has 256 divisors, whose sum is σ = 57397248000. Its totient is φ = 6098830848.

The previous prime is 19975637051. The next prime is 19975637093. The reversal of 19975637080 is 8073657991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7217857 + ... + 7220623.

It is an arithmetic number, because the mean of its divisors is an integer number (224208000).

Almost surely, 2^19975637080 is an apocalyptic number.

19975637080 is a gapful number since it is divisible by the number (10) 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 19975637080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28698624000).

19975637080 is an abundant number, since it is smaller than the sum of its proper divisors (37421610920).

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

19975637080 is a wasteful number, since it uses less digits than its factorization.

19975637080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2886 (or 2882 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 55.

The spelling of 19975637080 in words is "nineteen billion, nine hundred seventy-five million, six hundred thirty-seven thousand, eighty".