3451846561021 has 8 divisors (see below), whose sum is σ = 3486228989760. Its totient is φ = 3417625174752.

The previous prime is 3451846561013. The next prime is 3451846561039. The reversal of 3451846561021 is 1201656481543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3451846561021 - 2³ = 3451846561013 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 (3451846561061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40217536 + ... + 40303273.

It is an arithmetic number, because the mean of its divisors is an integer number (435778623720).

Almost surely, 2^{3451846561021} is an apocalyptic number.

It is an amenable number.

3451846561021 is a deficient number, since it is larger than the sum of its proper divisors (34382428739).

3451846561021 is a wasteful number, since it uses less digits than its factorization.

3451846561021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80521235.

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 3451846561021 in words is "three trillion, four hundred fifty-one billion, eight hundred forty-six million, five hundred sixty-one thousand, twenty-one".