1242539242560 has 3024 divisors, whose sum is σ = 6071789662848. Its totient is φ = 227439083520.

The previous prime is 1242539242531. The next prime is 1242539242573. The reversal of 1242539242560 is 652429352421.

1242539242560 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 5 + 392 + 4 + 256 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 14970352279 + ... + 14970352361.

It is an arithmetic number, because the mean of its divisors is an integer number (2007866952).

Almost surely, 2^{1242539242560} is an apocalyptic number.

1242539242560 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 1242539242560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3035894831424).

1242539242560 is an abundant number, since it is smaller than the sum of its proper divisors (4829250420288).

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

1242539242560 is a wasteful number, since it uses less digits than its factorization.

1242539242560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 1242539242560 in words is "one trillion, two hundred forty-two billion, five hundred thirty-nine million, two hundred forty-two thousand, five hundred sixty".