19452595380 has 48 divisors (see below), whose sum is σ = 54684310464. Its totient is φ = 5166688000.

The previous prime is 19452595373. The next prime is 19452595381. The reversal of 19452595380 is 8359525491.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19452595381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 630777 + ... + 660896.

It is an arithmetic number, because the mean of its divisors is an integer number (1139256468).

Almost surely, 2^19452595380 is an apocalyptic number.

19452595380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19452595380 is an abundant number, since it is smaller than the sum of its proper divisors (35231715084).

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

19452595380 is a wasteful number, since it uses less digits than its factorization.

19452595380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291936 (or 1291934 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 51.

The spelling of 19452595380 in words is "nineteen billion, four hundred fifty-two million, five hundred ninety-five thousand, three hundred eighty".