1287241034480 has 40 divisors (see below), whose sum is σ = 2992991967504. Its totient is φ = 514869478400.

The previous prime is 1287241034459. The next prime is 1287241034557. The reversal of 1287241034480 is 844301427821.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1154600 + ... + 1976760.

Almost surely, 2^{1287241034480} is an apocalyptic number.

1287241034480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1287241034480 is an abundant number, since it is smaller than the sum of its proper divisors (1705750933024).

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

1287241034480 is a wasteful number, since it uses less digits than its factorization.

1287241034480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841745 (or 841739 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 44.

The spelling of 1287241034480 in words is "one trillion, two hundred eighty-seven billion, two hundred forty-one million, thirty-four thousand, four hundred eighty".