18487406073 has 8 divisors (see below), whose sum is σ = 24660550336. Its totient is φ = 12319599600.

The previous prime is 18487406053. The next prime is 18487406101. The reversal of 18487406073 is 37060478481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18487406073 - 2⁹ = 18487405561 is a prime.

It is a super-3 number, since 3×18487406073³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18487406023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1326358 + ... + 1340223.

It is an arithmetic number, because the mean of its divisors is an integer number (3082568792).

Almost surely, 2^18487406073 is an apocalyptic number.

It is an amenable number.

18487406073 is a deficient number, since it is larger than the sum of its proper divisors (6173144263).

18487406073 is a wasteful number, since it uses less digits than its factorization.

18487406073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668895.

The product of its (nonzero) digits is 903168, while the sum is 48.

The spelling of 18487406073 in words is "eighteen billion, four hundred eighty-seven million, four hundred six thousand, seventy-three".