19736260740 has 168 divisors, whose sum is σ = 71018418240. Its totient is φ = 4511121984.

The previous prime is 19736260723. The next prime is 19736260751. The reversal of 19736260740 is 4706263791.

19736260740 is a `hidden beast` number, since 1 + 9 + 7 + 36 + 2 + 607 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 5371 + ... + 198749.

It is an arithmetic number, because the mean of its divisors is an integer number (422728680).

Almost surely, 2^19736260740 is an apocalyptic number.

19736260740 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 19736260740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35509209120).

19736260740 is an abundant number, since it is smaller than the sum of its proper divisors (51282157500).

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

19736260740 is a wasteful number, since it uses less digits than its factorization.

19736260740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193413 (or 193396 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 19736260740 in words is "nineteen billion, seven hundred thirty-six million, two hundred sixty thousand, seven hundred forty".