1242635506236 has 96 divisors (see below), whose sum is σ = 3226478492160. Its totient is φ = 413591270400.

The previous prime is 1242635506223. The next prime is 1242635506241. The reversal of 1242635506236 is 6326055362421.

1242635506236 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 6 + 3 + 550 + 62 + 36 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1242635506191 and 1242635506200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 303746551 + ... + 303750641.

It is an arithmetic number, because the mean of its divisors is an integer number (33609150960).

Almost surely, 2^{1242635506236} is an apocalyptic number.

It is an amenable number.

1242635506236 is an abundant number, since it is smaller than the sum of its proper divisors (1983842985924).

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

1242635506236 is a wasteful number, since it uses less digits than its factorization.

1242635506236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7632 (or 7624 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 45.

The spelling of 1242635506236 in words is "one trillion, two hundred forty-two billion, six hundred thirty-five million, five hundred six thousand, two hundred thirty-six".