3611406672 has 30 divisors (see below), whose sum is σ = 10106923242. Its totient is φ = 1203802176.

The previous prime is 3611406641. The next prime is 3611406691. The reversal of 3611406672 is 2766041163.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3204012816 + 407393856 = 56604^2 + 20184^2 .

It is a super-2 number, since 2×3611406672² = 26084516301132231168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 12539463 + ... + 12539750.

Almost surely, 2^3611406672 is an apocalyptic number.

It is an amenable number.

3611406672 is an abundant number, since it is smaller than the sum of its proper divisors (6495516570).

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

3611406672 is a wasteful number, since it uses less digits than its factorization.

3611406672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25079227 (or 25079218 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 3611406672 is about 60094.9804226609. The cubic root of 3611406672 is about 1534.2358693258.

The spelling of 3611406672 in words is "three billion, six hundred eleven million, four hundred six thousand, six hundred seventy-two".