4198347751525 has 12 divisors (see below), whose sum is σ = 5252021580132. Its totient is φ = 3328955383040.

The previous prime is 4198347751487. The next prime is 4198347751529. The reversal of 4198347751525 is 5251577438914.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1209051985761 + 2989295765764 = 1099569^2 + 1728958^2 .

It is not a de Polignac number, because 4198347751525 - 2¹⁵ = 4198347718757 is a prime.

It is a super-3 number, since 3×4198347751525³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4198347751529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 743067574 + ... + 743073223.

It is an arithmetic number, because the mean of its divisors is an integer number (437668465011).

Almost surely, 2^{4198347751525} is an apocalyptic number.

It is an amenable number.

4198347751525 is a deficient number, since it is larger than the sum of its proper divisors (1053673828607).

4198347751525 is a wasteful number, since it uses less digits than its factorization.

4198347751525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486140920 (or 1486140915 counting only the distinct ones).

The product of its digits is 42336000, while the sum is 61.

The spelling of 4198347751525 in words is "four trillion, one hundred ninety-eight billion, three hundred forty-seven million, seven hundred fifty-one thousand, five hundred twenty-five".