1493062021188 has 18 divisors (see below), whose sum is σ = 3774128998094. Its totient is φ = 497687340384.

The previous prime is 1493062021181. The next prime is 1493062021247. The reversal of 1493062021188 is 8811202603941.

1493062021188 is a `hidden beast` number, since 1 + 4 + 9 + 3 + 0 + 620 + 2 + 1 + 18 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 941951773764 + 551110247424 = 970542^2 + 742368^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1493062021188² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1493062021181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20736972481 + ... + 20736972552.

Almost surely, 2^{1493062021188} is an apocalyptic number.

1493062021188 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1493062021188 is an abundant number, since it is smaller than the sum of its proper divisors (2281066976906).

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

1493062021188 is a wasteful number, since it uses less digits than its factorization.

1493062021188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41473945043 (or 41473945038 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 1493062021188 in words is "one trillion, four hundred ninety-three billion, sixty-two million, twenty-one thousand, one hundred eighty-eight".