18380655034 has 32 divisors (see below), whose sum is σ = 33928709760. Its totient is φ = 7288378368.

The previous prime is 18380655031. The next prime is 18380655037. The reversal of 18380655034 is 43055608381.

It is an interprime number because it is at equal distance from previous prime (18380655031) and next prime (18380655037).

It is not an unprimeable number, because it can be changed into a prime (18380655031) 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, 640447 + ... + 668530.

It is an arithmetic number, because the mean of its divisors is an integer number (1060272180).

Almost surely, 2^18380655034 is an apocalyptic number.

18380655034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18380655034 is a deficient number, since it is larger than the sum of its proper divisors (15548054726).

18380655034 is a wasteful number, since it uses less digits than its factorization.

18380655034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309062.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 18380655034 in words is "eighteen billion, three hundred eighty million, six hundred fifty-five thousand, thirty-four".