19495604180 has 48 divisors (see below), whose sum is σ = 44130187920. Its totient is φ = 7191825408.

The previous prime is 19495604159. The next prime is 19495604201. The reversal of 19495604180 is 8140659491.

It is an interprime number because it is at equal distance from previous prime (19495604159) and next prime (19495604201).

It can be written as a sum of positive squares in 8 ways, for example, as 3748867984 + 15746736196 = 61228^2 + 125486^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256856 + ... + 323984.

It is an arithmetic number, because the mean of its divisors is an integer number (919378915).

Almost surely, 2^19495604180 is an apocalyptic number.

19495604180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19495604180 is an abundant number, since it is smaller than the sum of its proper divisors (24634583740).

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

19495604180 is a wasteful number, since it uses less digits than its factorization.

19495604180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68268 (or 68266 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The spelling of 19495604180 in words is "nineteen billion, four hundred ninety-five million, six hundred four thousand, one hundred eighty".