3749969536 has 32 divisors (see below), whose sum is σ = 7672561380. Its totient is φ = 1824307200.

The previous prime is 3749969507. The next prime is 3749969539. The reversal of 3749969536 is 6359699473.

It can be written as a sum of positive squares in 2 ways, for example, as 3370499136 + 379470400 = 58056^2 + 19480^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (3749969539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391165 + ... + 400636.

Almost surely, 2^3749969536 is an apocalyptic number.

It is an amenable number.

3749969536 is an abundant number, since it is smaller than the sum of its proper divisors (3922591844).

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

3749969536 is an equidigital number, since it uses as much as digits as its factorization.

3749969536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791852 (or 791840 counting only the distinct ones).

The product of its digits is 33067440, while the sum is 61.

The square root of 3749969536 is about 61236.9948315559. The cubic root of 3749969536 is about 1553.6120459108.

The spelling of 3749969536 in words is "three billion, seven hundred forty-nine million, nine hundred sixty-nine thousand, five hundred thirty-six".