19475970628 has 6 divisors (see below), whose sum is σ = 34082948606. Its totient is φ = 9737985312.

The previous prime is 19475970617. The next prime is 19475970629. The reversal of 19475970628 is 82607957491.

It can be written as a sum of positive squares in only one way, i.e., 19115274564 + 360696064 = 138258^2 + 18992^2 .

It is not an unprimeable number, because it can be changed into a prime (19475970629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2434496325 + ... + 2434496332.

Almost surely, 2^19475970628 is an apocalyptic number.

It is an amenable number.

19475970628 is a deficient number, since it is larger than the sum of its proper divisors (14606977978).

19475970628 is a wasteful number, since it uses less digits than its factorization.

19475970628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4868992661 (or 4868992659 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 58.

The spelling of 19475970628 in words is "nineteen billion, four hundred seventy-five million, nine hundred seventy thousand, six hundred twenty-eight".