19812060452 has 12 divisors (see below), whose sum is σ = 34944107520. Its totient is φ = 9828029736.

The previous prime is 19812060449. The next prime is 19812060481. The reversal of 19812060452 is 25406021891.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19499552 + ... + 19500567.

It is an arithmetic number, because the mean of its divisors is an integer number (2912008960).

Almost surely, 2^19812060452 is an apocalyptic number.

It is an amenable number.

19812060452 is a deficient number, since it is larger than the sum of its proper divisors (15132047068).

19812060452 is a wasteful number, since it uses less digits than its factorization.

19812060452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39000250 (or 39000248 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 19812060452 in words is "nineteen billion, eight hundred twelve million, sixty thousand, four hundred fifty-two".