18471335969380 has 48 divisors (see below), whose sum is σ = 44448175336320. Its totient is φ = 6316319616768.

The previous prime is 18471335969329. The next prime is 18471335969389. The reversal of 18471335969380 is 8396953317481.

It is a super-2 number, since 2×18471335969380² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18471335969389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174007777 + ... + 174113896.

It is an arithmetic number, because the mean of its divisors is an integer number (926003652840).

Almost surely, 2^{18471335969380} is an apocalyptic number.

18471335969380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18471335969380 is an abundant number, since it is smaller than the sum of its proper divisors (25976839366940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18471335969380 is a wasteful number, since it uses less digits than its factorization.

18471335969380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348122068 (or 348122066 counting only the distinct ones).

The product of its (nonzero) digits is 117573120, while the sum is 67.

The spelling of 18471335969380 in words is "eighteen trillion, four hundred seventy-one billion, three hundred thirty-five million, nine hundred sixty-nine thousand, three hundred eighty".