19475265612 has 96 divisors (see below), whose sum is σ = 50290732800. Its totient is φ = 5816736000.

The previous prime is 19475265611. The next prime is 19475265629. The reversal of 19475265612 is 21656257491.

It is not an unprimeable number, because it can be changed into a prime (19475265611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3049839 + ... + 3056217.

It is an arithmetic number, because the mean of its divisors is an integer number (523861800).

Almost surely, 2^19475265612 is an apocalyptic number.

19475265612 is a gapful number since it is divisible by the number (12) 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 19475265612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25145366400).

19475265612 is an abundant number, since it is smaller than the sum of its proper divisors (30815467188).

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

19475265612 is a wasteful number, since it uses less digits than its factorization.

19475265612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6727 (or 6725 counting only the distinct ones).

The product of its digits is 907200, while the sum is 48.

The spelling of 19475265612 in words is "nineteen billion, four hundred seventy-five million, two hundred sixty-five thousand, six hundred twelve".