361508478861 has 32 divisors (see below), whose sum is σ = 505239533568. Its totient is φ = 229695016320.

The previous prime is 361508478787. The next prime is 361508478889. The reversal of 361508478861 is 168874805163.

It is a happy number.

It is not a de Polignac number, because 361508478861 - 2²⁷ = 361374261133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361508470861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1916785 + ... + 2096921.

It is an arithmetic number, because the mean of its divisors is an integer number (15788735424).

Almost surely, 2^361508478861 is an apocalyptic number.

It is an amenable number.

361508478861 is a deficient number, since it is larger than the sum of its proper divisors (143731054707).

361508478861 is a wasteful number, since it uses less digits than its factorization.

361508478861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180561.

The product of its (nonzero) digits is 7741440, while the sum is 57.

The spelling of 361508478861 in words is "three hundred sixty-one billion, five hundred eight million, four hundred seventy-eight thousand, eight hundred sixty-one".