46561642604551 has 4 divisors (see below), whose sum is σ = 46738683070992. Its totient is φ = 46384602138112.

The previous prime is 46561642604539. The next prime is 46561642604579. The reversal of 46561642604551 is 15540624616564.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46561642604551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 46561642604492 and 46561642604501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46561642604951) 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, 88520232826 + ... + 88520233351.

It is an arithmetic number, because the mean of its divisors is an integer number (11684670767748).

Almost surely, 2^{46561642604551} is an apocalyptic number.

46561642604551 is a deficient number, since it is larger than the sum of its proper divisors (177040466441).

46561642604551 is a wasteful number, since it uses less digits than its factorization.

46561642604551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177040466440.

The product of its (nonzero) digits is 20736000, while the sum is 55.

The spelling of 46561642604551 in words is "forty-six trillion, five hundred sixty-one billion, six hundred forty-two million, six hundred four thousand, five hundred fifty-one".