1485191984640 has 1280 divisors, whose sum is σ = 6070423468032. Its totient is φ = 301433094144.

The previous prime is 1485191984623. The next prime is 1485191984659. The reversal of 1485191984640 is 464891915841.

It is a tau number, because it is divible by the number of its divisors (1280).

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 127 ways as a sum of consecutive naturals, for example, 2193783982 + ... + 2193784658.

Almost surely, 2^{1485191984640} is an apocalyptic number.

1485191984640 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 1485191984640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3035211734016).

1485191984640 is an abundant number, since it is smaller than the sum of its proper divisors (4585231483392).

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

1485191984640 is a wasteful number, since it uses less digits than its factorization.

1485191984640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 60.

The spelling of 1485191984640 in words is "one trillion, four hundred eighty-five billion, one hundred ninety-one million, nine hundred eighty-four thousand, six hundred forty".