3537169749 has 16 divisors (see below), whose sum is σ = 5303390400. Its totient is φ = 2329700688.

The previous prime is 3537169721. The next prime is 3537169799. The reversal of 3537169749 is 9479617353.

It is a happy number.

3537169749 is a `hidden beast` number, since 3 + 537 + 1 + 69 + 7 + 49 = 666.

It is not a de Polignac number, because 3537169749 - 2⁵ = 3537169717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3537169695 and 3537169704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3537169799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 786954 + ... + 791435.

It is an arithmetic number, because the mean of its divisors is an integer number (331461900).

Almost surely, 2^3537169749 is an apocalyptic number.

It is an amenable number.

3537169749 is a deficient number, since it is larger than the sum of its proper divisors (1766220651).

3537169749 is a wasteful number, since it uses less digits than its factorization.

3537169749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578481 (or 1578475 counting only the distinct ones).

The product of its digits is 4286520, while the sum is 54.

The square root of 3537169749 is about 59474.1099050671. The cubic root of 3537169749 is about 1523.6502971878.

The spelling of 3537169749 in words is "three billion, five hundred thirty-seven million, one hundred sixty-nine thousand, seven hundred forty-nine".