6213895164 has 36 divisors (see below), whose sum is σ = 15788748976. Its totient is φ = 2060563968.

The previous prime is 6213895159. The next prime is 6213895169. The reversal of 6213895164 is 4615983126.

6213895164 is a `hidden beast` number, since 621 + 3 + 8 + 9 + 5 + 16 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (6213895159) and next prime (6213895169).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×6213895164² = 77224986218365173792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6213895169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 440224 + ... + 454119.

Almost surely, 2^6213895164 is an apocalyptic number.

It is an amenable number.

6213895164 is an abundant number, since it is smaller than the sum of its proper divisors (9574853812).

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

6213895164 is a wasteful number, since it uses less digits than its factorization.

6213895164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894546 (or 894541 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 6213895164 is about 78828.2637383318. The cubic root of 6213895164 is about 1838.4619278871.

The spelling of 6213895164 in words is "six billion, two hundred thirteen million, eight hundred ninety-five thousand, one hundred sixty-four".