19602996840 has 192 divisors, whose sum is σ = 76011825600. Its totient is φ = 4480672896.

The previous prime is 19602996827. The next prime is 19602996841. The reversal of 19602996840 is 4869920691.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (19602996841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 132294 + ... + 238133.

It is an arithmetic number, because the mean of its divisors is an integer number (395894925).

Almost surely, 2^19602996840 is an apocalyptic number.

19602996840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19602996840 is an abundant number, since it is smaller than the sum of its proper divisors (56408828760).

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

19602996840 is a wasteful number, since it uses less digits than its factorization.

19602996840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370461 (or 370444 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 19602996840 in words is "nineteen billion, six hundred two million, nine hundred ninety-six thousand, eight hundred forty".