1242899759232 has 192 divisors, whose sum is σ = 3732678331200. Its totient is φ = 411659449344.

The previous prime is 1242899759207. The next prime is 1242899759347. The reversal of 1242899759232 is 2329579982421.

1242899759232 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 8 + 9 + 9 + 7 + 592 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×1242899759232² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1242899759232.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4756069 + ... + 5010587.

It is an arithmetic number, because the mean of its divisors is an integer number (19441032975).

Almost surely, 2^{1242899759232} is an apocalyptic number.

1242899759232 is a gapful number since it is divisible by the number (12) 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 1242899759232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1866339165600).

1242899759232 is an abundant number, since it is smaller than the sum of its proper divisors (2489778571968).

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

1242899759232 is an equidigital number, since it uses as much as digits as its factorization.

1242899759232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254705 (or 254681 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 63.

The spelling of 1242899759232 in words is "one trillion, two hundred forty-two billion, eight hundred ninety-nine million, seven hundred fifty-nine thousand, two hundred thirty-two".