361864666903845 has 64 divisors (see below), whose sum is σ = 662933223327744. Its totient is φ = 165114568523520.

The previous prime is 361864666903843. The next prime is 361864666903877. The reversal of 361864666903845 is 548309666468163.

It is not a de Polignac number, because 361864666903845 - 2¹ = 361864666903843 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361864666903841) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 193612174 + ... + 195472256.

It is an arithmetic number, because the mean of its divisors is an integer number (10358331614496).

Almost surely, 2^{361864666903845} is an apocalyptic number.

361864666903845 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

361864666903845 is a deficient number, since it is larger than the sum of its proper divisors (301068556423899).

361864666903845 is a wasteful number, since it uses less digits than its factorization.

361864666903845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863562.

The product of its (nonzero) digits is 3224862720, while the sum is 75.

The spelling of 361864666903845 in words is "three hundred sixty-one trillion, eight hundred sixty-four billion, six hundred sixty-six million, nine hundred three thousand, eight hundred forty-five".