361520039999 has 4 divisors (see below), whose sum is σ = 363098730360. Its totient is φ = 359941349640.

The previous prime is 361520039989. The next prime is 361520040001. The reversal of 361520039999 is 999930025163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999930025163 = 618053 ⋅1617871.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-361520039999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361520039939) 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, 789344837 + ... + 789345294.

It is an arithmetic number, because the mean of its divisors is an integer number (90774682590).

Almost surely, 2^361520039999 is an apocalyptic number.

361520039999 is a deficient number, since it is larger than the sum of its proper divisors (1578690361).

361520039999 is a wasteful number, since it uses less digits than its factorization.

361520039999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578690360.

The product of its (nonzero) digits is 3542940, while the sum is 56.

The spelling of 361520039999 in words is "three hundred sixty-one billion, five hundred twenty million, thirty-nine thousand, nine hundred ninety-nine".