2157014670 has 64 divisors (see below), whose sum is σ = 5326124544. Its totient is φ = 558829440.

The previous prime is 2157014659. The next prime is 2157014687. The reversal of 2157014670 is 764107512.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 157185 + ... + 170355.

It is an arithmetic number, because the mean of its divisors is an integer number (83220696).

Almost surely, 2^2157014670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2157014670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2663062272).

2157014670 is an abundant number, since it is smaller than the sum of its proper divisors (3169109874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2157014670 is a wasteful number, since it uses less digits than its factorization.

2157014670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13337.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 2157014670 is about 46443.6720124497. The cubic root of 2157014670 is about 1292.0650118091.

The spelling of 2157014670 in words is "two billion, one hundred fifty-seven million, fourteen thousand, six hundred seventy".