19463040100 has 81 divisors (see below), whose sum is σ = 49154937867. Its totient is φ = 6669694080.

The previous prime is 19463040073. The next prime is 19463040119. The reversal of 19463040100 is 104036491.

The square root of 19463040100 is 139510.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 190937124 + 19272102976 = 13818^2 + 138824^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

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 26 ways as a sum of consecutive naturals, for example, 9764704 + ... + 9766696.

Almost surely, 2^19463040100 is an apocalyptic number.

19463040100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19463040100 is the 139510-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19463040100

19463040100 is an abundant number, since it is smaller than the sum of its proper divisors (29691897767).

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

19463040100 is an equidigital number, since it uses as much as digits as its factorization.

19463040100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4014 (or 2007 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

Adding to 19463040100 its reverse (104036491), we get a palindrome (19567076591).

The spelling of 19463040100 in words is "nineteen billion, four hundred sixty-three million, forty thousand, one hundred".