3431653220642 has 4 divisors (see below), whose sum is σ = 5147479830966. Its totient is φ = 1715826610320.

The previous prime is 3431653220641. The next prime is 3431653220651. The reversal of 3431653220642 is 2460223561343.

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., 1876272592441 + 1555380628201 = 1369771^2 + 1247149^2 .

It is a super-2 number, since 2×3431653220642² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3431653220642.

It is not an unprimeable number, because it can be changed into a prime (3431653220641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 857913305159 + ... + 857913305162.

Almost surely, 2^{3431653220642} is an apocalyptic number.

3431653220642 is a deficient number, since it is larger than the sum of its proper divisors (1715826610324).

3431653220642 is a wasteful number, since it uses less digits than its factorization.

3431653220642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715826610323.

The product of its (nonzero) digits is 622080, while the sum is 41.

Adding to 3431653220642 its reverse (2460223561343), we get a palindrome (5891876781985).

The spelling of 3431653220642 in words is "three trillion, four hundred thirty-one billion, six hundred fifty-three million, two hundred twenty thousand, six hundred forty-two".