3561146506451 has 4 divisors (see below), whose sum is σ = 3581731168512. Its totient is φ = 3540561844392.

The previous prime is 3561146506447. The next prime is 3561146506483. The reversal of 3561146506451 is 1546056411653.

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 3561146506451 - 2² = 3561146506447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3561146506396 and 3561146506405.

It is not an unprimeable number, because it can be changed into a prime (3561146502451) 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, 10292330771 + ... + 10292331116.

It is an arithmetic number, because the mean of its divisors is an integer number (895432792128).

Almost surely, 2^{3561146506451} is an apocalyptic number.

3561146506451 is a deficient number, since it is larger than the sum of its proper divisors (20584662061).

3561146506451 is a wasteful number, since it uses less digits than its factorization.

3561146506451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20584662060.

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 3561146506451 in words is "three trillion, five hundred sixty-one billion, one hundred forty-six million, five hundred six thousand, four hundred fifty-one".