1494473638000 has 400 divisors, whose sum is σ = 4463883069984. Its totient is φ = 482223974400.

The previous prime is 1494473637991. The next prime is 1494473638013. The reversal of 1494473638000 is 8363744941.

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 81624847 + ... + 81643153.

Almost surely, 2^{1494473638000} is an apocalyptic number.

1494473638000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1494473638000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2231941534992).

1494473638000 is an abundant number, since it is smaller than the sum of its proper divisors (2969409431984).

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

1494473638000 is an equidigital number, since it uses as much as digits as its factorization.

1494473638000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18375 (or 18338 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 49.

The spelling of 1494473638000 in words is "one trillion, four hundred ninety-four billion, four hundred seventy-three million, six hundred thirty-eight thousand".