18428972513371 has 8 divisors (see below), whose sum is σ = 21061872048384. Its totient is φ = 15796120272360.

The previous prime is 18428972513297. The next prime is 18428972513377. The reversal of 18428972513371 is 17331527982481.

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

It is a cyclic number.

It is not a de Polignac number, because 18428972513371 - 2⁴³ = 9632879491163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18428972513377) 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, 10984525 + ... + 12550606.

It is an arithmetic number, because the mean of its divisors is an integer number (2632734006048).

Almost surely, 2^{18428972513371} is an apocalyptic number.

18428972513371 is a deficient number, since it is larger than the sum of its proper divisors (2632899535013).

18428972513371 is a wasteful number, since it uses less digits than its factorization.

18428972513371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23647001.

The product of its digits is 20321280, while the sum is 61.

The spelling of 18428972513371 in words is "eighteen trillion, four hundred twenty-eight billion, nine hundred seventy-two million, five hundred thirteen thousand, three hundred seventy-one".