3561462391 has 4 divisors (see below), whose sum is σ = 3748907800. Its totient is φ = 3374016984.

The previous prime is 3561462367. The next prime is 3561462409. The reversal of 3561462391 is 1932641653.

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

It is a cyclic number.

It is not a de Polignac number, because 3561462391 - 2⁷ = 3561462263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3561469391) 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, 93722676 + ... + 93722713.

It is an arithmetic number, because the mean of its divisors is an integer number (937226950).

Almost surely, 2^3561462391 is an apocalyptic number.

3561462391 is a deficient number, since it is larger than the sum of its proper divisors (187445409).

3561462391 is a wasteful number, since it uses less digits than its factorization.

3561462391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187445408.

The product of its digits is 116640, while the sum is 40.

The square root of 3561462391 is about 59677.9891668612. The cubic root of 3561462391 is about 1527.1303939564.

The spelling of 3561462391 in words is "three billion, five hundred sixty-one million, four hundred sixty-two thousand, three hundred ninety-one".