3457857636 has 18 divisors (see below), whose sum is σ = 8740695782. Its totient is φ = 1152619200.

The previous prime is 3457857619. The next prime is 3457857677. The reversal of 3457857636 is 6367587543.

3457857636 is a `hidden beast` number, since 3 + 4 + 578 + 5 + 7 + 63 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2304576036 + 1153281600 = 48006^2 + 33960^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48025765 + ... + 48025836.

Almost surely, 2^3457857636 is an apocalyptic number.

3457857636 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3457857636 is an abundant number, since it is smaller than the sum of its proper divisors (5282838146).

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

3457857636 is a wasteful number, since it uses less digits than its factorization.

3457857636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96051611 (or 96051606 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 54.

The square root of 3457857636 is about 58803.5512192929. The cubic root of 3457857636 is about 1512.1760996286.

The spelling of 3457857636 in words is "three billion, four hundred fifty-seven million, eight hundred fifty-seven thousand, six hundred thirty-six".