21418140360 has 64 divisors (see below), whose sum is σ = 64290746880. Its totient is φ = 5708275200.

The previous prime is 21418140349. The next prime is 21418140439. The reversal of 21418140360 is 6304181412.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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, 166569 + ... + 265671.

It is an arithmetic number, because the mean of its divisors is an integer number (1004542920).

Almost surely, 2^21418140360 is an apocalyptic number.

21418140360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21418140360 is an abundant number, since it is smaller than the sum of its proper divisors (42872606520).

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

21418140360 is a wasteful number, since it uses less digits than its factorization.

21418140360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100918 (or 100914 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

It can be divided in two parts, 214181 and 40360, that added together give a triangular number (254541 = T₇₁₃).

The spelling of 21418140360 in words is "twenty-one billion, four hundred eighteen million, one hundred forty thousand, three hundred sixty".