18071278848 has 360 divisors, whose sum is σ = 64272582528. Its totient is φ = 4937822208.

The previous prime is 18071278811. The next prime is 18071278861. The reversal of 18071278848 is 84887217081.

It is a happy number.

It is a super-2 number, since 2×18071278848² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 18071278794 and 18071278803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3335790 + ... + 3341202.

Almost surely, 2^18071278848 is an apocalyptic number.

18071278848 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18071278848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32136291264).

18071278848 is an abundant number, since it is smaller than the sum of its proper divisors (46201303680).

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

18071278848 is an equidigital number, since it uses as much as digits as its factorization.

18071278848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5471 (or 5448 counting only the distinct ones).

The product of its (nonzero) digits is 1605632, while the sum is 54.

It can be divided in two parts, 180712 and 78848, that added together give a triangular number (259560 = T₇₂₀).

The spelling of 18071278848 in words is "eighteen billion, seventy-one million, two hundred seventy-eight thousand, eight hundred forty-eight".