19445085348 has 48 divisors (see below), whose sum is σ = 48885962496. Its totient is φ = 5980170240.

The previous prime is 19445085343. The next prime is 19445085353. The reversal of 19445085348 is 84358054491.

It is an interprime number because it is at equal distance from previous prime (19445085343) and next prime (19445085353).

It is a super-2 number, since 2×19445085348² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19445085348.

It is not an unprimeable number, because it can be changed into a prime (19445085343) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 300133 + ... + 359123.

It is an arithmetic number, because the mean of its divisors is an integer number (1018457552).

Almost surely, 2^19445085348 is an apocalyptic number.

It is an amenable number.

19445085348 is an abundant number, since it is smaller than the sum of its proper divisors (29440877148).

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

19445085348 is a wasteful number, since it uses less digits than its factorization.

19445085348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61124 (or 61122 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 19445085348 in words is "nineteen billion, four hundred forty-five million, eighty-five thousand, three hundred forty-eight".