3531262642 has 4 divisors (see below), whose sum is σ = 5296893966. Its totient is φ = 1765631320.

The previous prime is 3531262597. The next prime is 3531262667. The reversal of 3531262642 is 2462621353.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2969051121 + 562211521 = 54489^2 + 23711^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3531262598 and 3531262607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 882815659 + ... + 882815662.

Almost surely, 2^3531262642 is an apocalyptic number.

3531262642 is a deficient number, since it is larger than the sum of its proper divisors (1765631324).

3531262642 is a wasteful number, since it uses less digits than its factorization.

3531262642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1765631323.

The product of its digits is 51840, while the sum is 34.

The square root of 3531262642 is about 59424.4279905158. The cubic root of 3531262642 is about 1522.8016544536.

Adding to 3531262642 its reverse (2462621353), we get a palindrome (5993883995).

The spelling of 3531262642 in words is "three billion, five hundred thirty-one million, two hundred sixty-two thousand, six hundred forty-two".