361653400444643 has 4 divisors (see below), whose sum is σ = 361789207206768. Its totient is φ = 361517593682520.

The previous prime is 361653400444591. The next prime is 361653400444669. The reversal of 361653400444643 is 346444004356163.

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 361653400444643 - 2⁶ = 361653400444579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361653400444943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67903377068 + ... + 67903382393.

It is an arithmetic number, because the mean of its divisors is an integer number (90447301801692).

Almost surely, 2^{361653400444643} is an apocalyptic number.

361653400444643 is a deficient number, since it is larger than the sum of its proper divisors (135806762125).

361653400444643 is a wasteful number, since it uses less digits than its factorization.

361653400444643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135806762124.

The product of its (nonzero) digits is 29859840, while the sum is 53.

The spelling of 361653400444643 in words is "three hundred sixty-one trillion, six hundred fifty-three billion, four hundred million, four hundred forty-four thousand, six hundred forty-three".