18408293101 has 8 divisors (see below), whose sum is σ = 20185827264. Its totient is φ = 16648101120.

The previous prime is 18408292963. The next prime is 18408293131. The reversal of 18408293101 is 10139280481.

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

It is a cyclic number.

It is not a de Polignac number, because 18408293101 - 2²¹ = 18406195949 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 (18408293131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4333321 + ... + 4337566.

It is an arithmetic number, because the mean of its divisors is an integer number (2523228408).

Almost surely, 2^18408293101 is an apocalyptic number.

18408293101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18408293101 is a deficient number, since it is larger than the sum of its proper divisors (1777534163).

18408293101 is a wasteful number, since it uses less digits than its factorization.

18408293101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8671091.

The product of its (nonzero) digits is 13824, while the sum is 37.

The spelling of 18408293101 in words is "eighteen billion, four hundred eight million, two hundred ninety-three thousand, one hundred one".