2157876435 has 32 divisors (see below), whose sum is σ = 4056208128. Its totient is φ = 965761920.

The previous prime is 2157876433. The next prime is 2157876473. The reversal of 2157876435 is 5346787512.

It is not a de Polignac number, because 2157876435 - 2¹ = 2157876433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2157876433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 500857 + ... + 505146.

It is an arithmetic number, because the mean of its divisors is an integer number (126756504).

Almost surely, 2^2157876435 is an apocalyptic number.

2157876435 is a deficient number, since it is larger than the sum of its proper divisors (1898331693).

2157876435 is a wasteful number, since it uses less digits than its factorization.

2157876435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006035.

The product of its digits is 1411200, while the sum is 48.

The square root of 2157876435 is about 46452.9486147004. The cubic root of 2157876435 is about 1292.2370564057.

It can be divided in two parts, 215787 and 6435, that added together give a palindrome (222222).

The spelling of 2157876435 in words is "two billion, one hundred fifty-seven million, eight hundred seventy-six thousand, four hundred thirty-five".