2151468643 has 8 divisors (see below), whose sum is σ = 2287806768. Its totient is φ = 2016217344.

The previous prime is 2151468623. The next prime is 2151468653. The reversal of 2151468643 is 3468641512.

It is a happy number.

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 2151468643 - 2⁹ = 2151468131 is a prime.

It is a super-2 number, since 2×2151468643² = 9257634643624522898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2151468596 and 2151468605.

It is not an unprimeable number, because it can be changed into a prime (2151468623) 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, 267621 + ... + 275542.

It is an arithmetic number, because the mean of its divisors is an integer number (285975846).

Almost surely, 2^2151468643 is an apocalyptic number.

2151468643 is a deficient number, since it is larger than the sum of its proper divisors (136338125).

2151468643 is a wasteful number, since it uses less digits than its factorization.

2151468643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543413.

The product of its digits is 138240, while the sum is 40.

The square root of 2151468643 is about 46383.9265586690. The cubic root of 2151468643 is about 1290.9566933197.

The spelling of 2151468643 in words is "two billion, one hundred fifty-one million, four hundred sixty-eight thousand, six hundred forty-three".