19732060451 has 4 divisors (see below), whose sum is σ = 19744654272. Its totient is φ = 19719466632.

The previous prime is 19732060441. The next prime is 19732060459. The reversal of 19732060451 is 15406023791.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19732060451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19732060459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6294560 + ... + 6297693.

It is an arithmetic number, because the mean of its divisors is an integer number (4936163568).

Almost surely, 2^19732060451 is an apocalyptic number.

19732060451 is a deficient number, since it is larger than the sum of its proper divisors (12593821).

19732060451 is a wasteful number, since it uses less digits than its factorization.

19732060451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12593820.

The product of its (nonzero) digits is 45360, while the sum is 38.

The spelling of 19732060451 in words is "nineteen billion, seven hundred thirty-two million, sixty thousand, four hundred fifty-one".