3649766172 has 24 divisors (see below), whose sum is σ = 9171207696. Its totient is φ = 1123004928.

The previous prime is 3649766161. The next prime is 3649766179. The reversal of 3649766172 is 2716679463.

It is a super-2 number, since 2×3649766172² = 26641586220551067168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649766179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11697813 + ... + 11698124.

It is an arithmetic number, because the mean of its divisors is an integer number (382133654).

Almost surely, 2^3649766172 is an apocalyptic number.

It is an amenable number.

3649766172 is an abundant number, since it is smaller than the sum of its proper divisors (5521441524).

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

3649766172 is a wasteful number, since it uses less digits than its factorization.

3649766172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23395957 (or 23395955 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 51.

The square root of 3649766172 is about 60413.2946626817. The cubic root of 3649766172 is about 1539.6488449924.

The spelling of 3649766172 in words is "three billion, six hundred forty-nine million, seven hundred sixty-six thousand, one hundred seventy-two".