3974125749 has 24 divisors (see below), whose sum is σ = 5906262048. Its totient is φ = 2357271840.

The previous prime is 3974125741. The next prime is 3974125759. The reversal of 3974125749 is 9475214793.

It is a happy number.

3974125749 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3974125749 - 2³ = 3974125741 is a prime.

It is a super-2 number, since 2×3974125749² = 31587350937729622002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3974125741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45639 + ... + 100155.

It is an arithmetic number, because the mean of its divisors is an integer number (246094252).

Almost surely, 2^3974125749 is an apocalyptic number.

It is an amenable number.

3974125749 is a deficient number, since it is larger than the sum of its proper divisors (1932136299).

3974125749 is a wasteful number, since it uses less digits than its factorization.

3974125749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54625 (or 54578 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 51.

The square root of 3974125749 is about 63040.6674219111. The cubic root of 3974125749 is about 1583.9709108365.

The spelling of 3974125749 in words is "three billion, nine hundred seventy-four million, one hundred twenty-five thousand, seven hundred forty-nine".