2120646471 has 16 divisors (see below), whose sum is σ = 2861464320. Its totient is φ = 1396890560.

The previous prime is 2120646467. The next prime is 2120646553. The reversal of 2120646471 is 1746460212.

It is a cyclic number.

It is not a de Polignac number, because 2120646471 - 2² = 2120646467 is a prime.

It is a super-3 number, since 3×2120646471³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120646071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79990 + ... + 103148.

It is an arithmetic number, because the mean of its divisors is an integer number (178841520).

Almost surely, 2^2120646471 is an apocalyptic number.

2120646471 is a deficient number, since it is larger than the sum of its proper divisors (740817849).

2120646471 is a wasteful number, since it uses less digits than its factorization.

2120646471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23526.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 2120646471 is about 46050.4774242352. The cubic root of 2120646471 is about 1284.7622226042.

The spelling of 2120646471 in words is "two billion, one hundred twenty million, six hundred forty-six thousand, four hundred seventy-one".