1018885488720 has 80 divisors (see below), whose sum is σ = 3445685479872. Its totient is φ = 247002542080.

The previous prime is 1018885488629. The next prime is 1018885488749. The reversal of 1018885488720 is 278845888101.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-4 number, since 4×1018885488720⁴ (a number of 49 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192968097 + ... + 192973376.

Almost surely, 2^{1018885488720} is an apocalyptic number.

1018885488720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1018885488720 is an abundant number, since it is smaller than the sum of its proper divisors (2426799991152).

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

1018885488720 is a wasteful number, since it uses less digits than its factorization.

1018885488720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385941500 (or 385941494 counting only the distinct ones).

The product of its (nonzero) digits is 9175040, while the sum is 60.

The spelling of 1018885488720 in words is "one trillion, eighteen billion, eight hundred eighty-five million, four hundred eighty-eight thousand, seven hundred twenty".