1018019864892 has 24 divisors (see below), whose sum is σ = 2397172162000. Its totient is φ = 336226743936.

The previous prime is 1018019864867. The next prime is 1018019864909. The reversal of 1018019864892 is 2984689108101.

1018019864892 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389150017 + ... + 389152632.

Almost surely, 2^{1018019864892} is an apocalyptic number.

1018019864892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1018019864892 is an abundant number, since it is smaller than the sum of its proper divisors (1379152297108).

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

1018019864892 is a wasteful number, since it uses less digits than its factorization.

1018019864892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778302765 (or 778302763 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 57.

The spelling of 1018019864892 in words is "one trillion, eighteen billion, nineteen million, eight hundred sixty-four thousand, eight hundred ninety-two".