3542786561 has 4 divisors (see below), whose sum is σ = 3575289300. Its totient is φ = 3510283824.

The previous prime is 3542786497. The next prime is 3542786563. The reversal of 3542786561 is 1656872453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1656872453 = 277 ⋅5981489.

It can be written as a sum of positive squares in 2 ways, for example, as 944947600 + 2597838961 = 30740^2 + 50969^2 .

It is a cyclic number.

It is not a de Polignac number, because 3542786561 - 2⁶ = 3542786497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3542786563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16251206 + ... + 16251423.

It is an arithmetic number, because the mean of its divisors is an integer number (893822325).

Almost surely, 2^3542786561 is an apocalyptic number.

It is an amenable number.

3542786561 is a deficient number, since it is larger than the sum of its proper divisors (32502739).

3542786561 is a wasteful number, since it uses less digits than its factorization.

3542786561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32502738.

The product of its digits is 1209600, while the sum is 47.

The square root of 3542786561 is about 59521.3118219012. The cubic root of 3542786561 is about 1524.4563589056.

The spelling of 3542786561 in words is "three billion, five hundred forty-two million, seven hundred eighty-six thousand, five hundred sixty-one".