368406180509 has 16 divisors (see below), whose sum is σ = 389781258240. Its totient is φ = 347719463280.

The previous prime is 368406180497. The next prime is 368406180521. The reversal of 368406180509 is 905081604863.

It is an interprime number because it is at equal distance from previous prime (368406180497) and next prime (368406180521).

It is not a de Polignac number, because 368406180509 - 2²⁰ = 368405131933 is a prime.

It is a super-2 number, since 2×368406180509² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (368406180589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 560729 + ... + 1025294.

It is an arithmetic number, because the mean of its divisors is an integer number (24361328640).

Almost surely, 2^368406180509 is an apocalyptic number.

It is an amenable number.

368406180509 is a deficient number, since it is larger than the sum of its proper divisors (21375077731).

368406180509 is a wasteful number, since it uses less digits than its factorization.

368406180509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586240.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 368406180509 in words is "three hundred sixty-eight billion, four hundred six million, one hundred eighty thousand, five hundred nine".