20170454375 has 10 divisors (see below), whose sum is σ = 25205000568. Its totient is φ = 16136363000.

The previous prime is 20170454363. The next prime is 20170454387. The reversal of 20170454375 is 57345407102.

It is an interprime number because it is at equal distance from previous prime (20170454363) and next prime (20170454387).

It is not a de Polignac number, because 20170454375 - 2¹⁰ = 20170453351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 16135739 + ... + 16136988.

Almost surely, 2^20170454375 is an apocalyptic number.

20170454375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20170454375 is a deficient number, since it is larger than the sum of its proper divisors (5034546193).

20170454375 is an frugal number, since it uses more digits than its factorization.

20170454375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32272747 (or 32272732 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 38.

The spelling of 20170454375 in words is "twenty billion, one hundred seventy million, four hundred fifty-four thousand, three hundred seventy-five".