1490138544000 has 128 divisors (see below), whose sum is σ = 4939809432480. Its totient is φ = 397370265600.

The previous prime is 1490138543953. The next prime is 1490138544031. The reversal of 1490138544000 is 4458310941.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 1490138544000.

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, 15474277 + ... + 15570276.

Almost surely, 2^{1490138544000} is an apocalyptic number.

1490138544000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1490138544000 is an abundant number, since it is smaller than the sum of its proper divisors (3449670888480).

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

1490138544000 is an equidigital number, since it uses as much as digits as its factorization.

1490138544000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31044585 (or 31044563 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 1490138544000 in words is "one trillion, four hundred ninety billion, one hundred thirty-eight million, five hundred forty-four thousand".