3526421641 has 12 divisors (see below), whose sum is σ = 3822394692. Its totient is φ = 3250515744.

The previous prime is 3526421629. The next prime is 3526421677. The reversal of 3526421641 is 1461246253.

It can be written as a sum of positive squares in 2 ways, for example, as 1420988416 + 2105433225 = 37696^2 + 45885^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3526421641 is a prime.

It is a super-2 number, since 2×3526421641² = 24871299180226265762, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3526421597 and 3526421606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3526221641) 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, 118650 + ... + 145363.

It is an arithmetic number, because the mean of its divisors is an integer number (318532891).

Almost surely, 2^3526421641 is an apocalyptic number.

It is an amenable number.

3526421641 is a deficient number, since it is larger than the sum of its proper divisors (295973051).

3526421641 is a wasteful number, since it uses less digits than its factorization.

3526421641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264088 (or 264069 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 3526421641 is about 59383.6816053030. The cubic root of 3526421641 is about 1522.1054676267.

Adding to 3526421641 its reverse (1461246253), we get a palindrome (4987667894).

The spelling of 3526421641 in words is "three billion, five hundred twenty-six million, four hundred twenty-one thousand, six hundred forty-one".