2151748479 has 8 divisors (see below), whose sum is σ = 2869839360. Its totient is φ = 1434078296.

The previous prime is 2151748477. The next prime is 2151748481. The reversal of 2151748479 is 9748471512.

It is an interprime number because it is at equal distance from previous prime (2151748477) and next prime (2151748481).

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 2151748479 - 2¹ = 2151748477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151748477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93039 + ... + 113840.

It is an arithmetic number, because the mean of its divisors is an integer number (358729920).

Almost surely, 2^2151748479 is an apocalyptic number.

2151748479 is a deficient number, since it is larger than the sum of its proper divisors (718090881).

2151748479 is a wasteful number, since it uses less digits than its factorization.

2151748479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210349.

The product of its digits is 564480, while the sum is 48.

The square root of 2151748479 is about 46386.9429796791. The cubic root of 2151748479 is about 1291.0126613669.

It can be divided in two parts, 21517 and 48479, that added together give a palindrome (69996).

The spelling of 2151748479 in words is "two billion, one hundred fifty-one million, seven hundred forty-eight thousand, four hundred seventy-nine".