3749319641 has 4 divisors (see below), whose sum is σ = 3761298612. Its totient is φ = 3737340672.

The previous prime is 3749319619. The next prime is 3749319653. The reversal of 3749319641 is 1469139473.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1469139473 = 17 ⋅86419969.

It can be written as a sum of positive squares in 2 ways, for example, as 511709641 + 3237610000 = 22621^2 + 56900^2 .

It is a cyclic number.

It is not a de Polignac number, because 3749319641 - 2⁶ = 3749319577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3749319671) 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, 5989016 + ... + 5989641.

It is an arithmetic number, because the mean of its divisors is an integer number (940324653).

Almost surely, 2^3749319641 is an apocalyptic number.

It is an amenable number.

3749319641 is a deficient number, since it is larger than the sum of its proper divisors (11978971).

3749319641 is a wasteful number, since it uses less digits than its factorization.

3749319641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11978970.

The product of its digits is 489888, while the sum is 47.

The square root of 3749319641 is about 61231.6882096190. The cubic root of 3749319641 is about 1553.5222902453.

The spelling of 3749319641 in words is "three billion, seven hundred forty-nine million, three hundred nineteen thousand, six hundred forty-one".