3147745620561 has 8 divisors (see below), whose sum is σ = 4197236257344. Its totient is φ = 2098376032080.

The previous prime is 3147745620553. The next prime is 3147745620577. The reversal of 3147745620561 is 1650265477413.

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

It is not a de Polignac number, because 3147745620561 - 2³ = 3147745620553 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3147745620521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30201381 + ... + 30305426.

It is an arithmetic number, because the mean of its divisors is an integer number (524654532168).

Almost surely, 2^{3147745620561} is an apocalyptic number.

It is an amenable number.

3147745620561 is a deficient number, since it is larger than the sum of its proper divisors (1049490636783).

3147745620561 is a wasteful number, since it uses less digits than its factorization.

3147745620561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60524151.

The product of its (nonzero) digits is 4233600, while the sum is 51.

The spelling of 3147745620561 in words is "three trillion, one hundred forty-seven billion, seven hundred forty-five million, six hundred twenty thousand, five hundred sixty-one".