1285495014720 has 448 divisors, whose sum is σ = 4917462368256. Its totient is φ = 278297026560.

The previous prime is 1285495014709. The next prime is 1285495014721. The reversal of 1285495014720 is 274105945821.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 1285495014720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285495014721) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9725394 + ... + 9856686.

Almost surely, 2^{1285495014720} is an apocalyptic number.

1285495014720 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 1285495014720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2458731184128).

1285495014720 is an abundant number, since it is smaller than the sum of its proper divisors (3631967353536).

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

1285495014720 is a wasteful number, since it uses less digits than its factorization.

1285495014720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131398 (or 131388 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 48.

The spelling of 1285495014720 in words is "one trillion, two hundred eighty-five billion, four hundred ninety-five million, fourteen thousand, seven hundred twenty".