19740599648 has 192 divisors, whose sum is σ = 51660758016. Its totient is φ = 7188480000.

The previous prime is 19740599633. The next prime is 19740599663. The reversal of 19740599648 is 84699504791.

It is an interprime number because it is at equal distance from previous prime (19740599633) and next prime (19740599663).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6323528 + ... + 6326648.

It is an arithmetic number, because the mean of its divisors is an integer number (269066448).

Almost surely, 2^19740599648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19740599648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25830379008).

19740599648 is an abundant number, since it is smaller than the sum of its proper divisors (31920158368).

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

19740599648 is a wasteful number, since it uses less digits than its factorization.

19740599648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3317 (or 3309 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 62.

The spelling of 19740599648 in words is "nineteen billion, seven hundred forty million, five hundred ninety-nine thousand, six hundred forty-eight".