19628451023 has 8 divisors (see below), whose sum is σ = 19656507936. Its totient is φ = 19600416000.

The previous prime is 19628451013. The next prime is 19628451053. The reversal of 19628451023 is 32015482691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19628451023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19628451013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2581958 + ... + 2589548.

It is an arithmetic number, because the mean of its divisors is an integer number (2457063492).

Almost surely, 2^19628451023 is an apocalyptic number.

19628451023 is a deficient number, since it is larger than the sum of its proper divisors (28056913).

19628451023 is a wasteful number, since it uses less digits than its factorization.

19628451023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10945.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 19628451023 in words is "nineteen billion, six hundred twenty-eight million, four hundred fifty-one thousand, twenty-three".