18306026547379 has 4 divisors (see below), whose sum is σ = 19269501628840. Its totient is φ = 17342551465920.

The previous prime is 18306026547371. The next prime is 18306026547383. The reversal of 18306026547379 is 97374562060381.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18306026547379 - 2³ = 18306026547371 is a prime.

It is a super-2 number, since 2×18306026547379² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18306026547371) 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, 481737540702 + ... + 481737540739.

It is an arithmetic number, because the mean of its divisors is an integer number (4817375407210).

It is a 4-persistent number, because k⋅18306026547379 is pandigital for 1 ≤ k ≤ 4, but not for k = 5.

Almost surely, 2^{18306026547379} is an apocalyptic number.

18306026547379 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

18306026547379 is a deficient number, since it is larger than the sum of its proper divisors (963475081461).

18306026547379 is an equidigital number, since it uses as much as digits as its factorization.

18306026547379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963475081460.

The product of its (nonzero) digits is 45722880, while the sum is 61.

The spelling of 18306026547379 in words is "eighteen trillion, three hundred six billion, twenty-six million, five hundred forty-seven thousand, three hundred seventy-nine".