18252219048 has 128 divisors (see below), whose sum is σ = 55323544320. Its totient is φ = 4898672640.

The previous prime is 18252219017. The next prime is 18252219053. The reversal of 18252219048 is 84091225281.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1539190 + ... + 1551002.

It is an arithmetic number, because the mean of its divisors is an integer number (432215190).

Almost surely, 2^18252219048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18252219048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27661772160).

18252219048 is an abundant number, since it is smaller than the sum of its proper divisors (37071325272).

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

18252219048 is a wasteful number, since it uses less digits than its factorization.

18252219048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12387 (or 12383 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The spelling of 18252219048 in words is "eighteen billion, two hundred fifty-two million, two hundred nineteen thousand, forty-eight".