2151747875 has 8 divisors (see below), whose sum is σ = 2685381504. Its totient is φ = 1721398200.

The previous prime is 2151747863. The next prime is 2151747883. The reversal of 2151747875 is 5787471512.

It is not a de Polignac number, because 2151747875 - 2¹⁶ = 2151682339 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8606867 + ... + 8607116.

It is an arithmetic number, because the mean of its divisors is an integer number (335672688).

Almost surely, 2^2151747875 is an apocalyptic number.

2151747875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2151747875 is a deficient number, since it is larger than the sum of its proper divisors (533633629).

2151747875 is an equidigital number, since it uses as much as digits as its factorization.

2151747875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17213998 (or 17213988 counting only the distinct ones).

The product of its digits is 548800, while the sum is 47.

The square root of 2151747875 is about 46386.9364692259. The cubic root of 2151747875 is about 1291.0125405703.

The spelling of 2151747875 in words is "two billion, one hundred fifty-one million, seven hundred forty-seven thousand, eight hundred seventy-five".