180400474643 has 2 divisors, whose sum is σ = 180400474644. Its totient is φ = 180400474642.

The previous prime is 180400474627. The next prime is 180400474669. The reversal of 180400474643 is 346474004081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 180400474643 - 2⁴ = 180400474627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 180400474643.

It is not a weakly prime, because it can be changed into another prime (180400074643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90200237321 + 90200237322.

It is an arithmetic number, because the mean of its divisors is an integer number (90200237322).

Almost surely, 2^180400474643 is an apocalyptic number.

180400474643 is a deficient number, since it is larger than the sum of its proper divisors (1).

180400474643 is an equidigital number, since it uses as much as digits as its factorization.

180400474643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 258048, while the sum is 41.

The spelling of 180400474643 in words is "one hundred eighty billion, four hundred million, four hundred seventy-four thousand, six hundred forty-three".