18452679240 has 64 divisors (see below), whose sum is σ = 58614399360. Its totient is φ = 4631260160.

The previous prime is 18452679211. The next prime is 18452679247. The reversal of 18452679240 is 4297625481.

It is a super-4 number, since 4×18452679240⁴ (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 18452679240.

It is not an unprimeable number, because it can be changed into a prime (18452679247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4520676 + ... + 4524755.

It is an arithmetic number, because the mean of its divisors is an integer number (915849990).

Almost surely, 2^18452679240 is an apocalyptic number.

18452679240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18452679240 is an abundant number, since it is smaller than the sum of its proper divisors (40161720120).

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

18452679240 is a wasteful number, since it uses less digits than its factorization.

18452679240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9045462 (or 9045458 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 18452679240 in words is "eighteen billion, four hundred fifty-two million, six hundred seventy-nine thousand, two hundred forty".