1242623592787 has 8 divisors (see below), whose sum is σ = 1272946792320. Its totient is φ = 1212301122240.

The previous prime is 1242623592773. The next prime is 1242623592817. The reversal of 1242623592787 is 7872953262421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1242623592787 - 2⁷ = 1242623592659 is a prime.

It is a super-2 number, since 2×1242623592787² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242623592757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5145918 + ... + 5381980.

It is an arithmetic number, because the mean of its divisors is an integer number (159118349040).

Almost surely, 2^{1242623592787} is an apocalyptic number.

1242623592787 is a deficient number, since it is larger than the sum of its proper divisors (30323199533).

1242623592787 is a wasteful number, since it uses less digits than its factorization.

1242623592787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364493.

The product of its digits is 20321280, while the sum is 58.

The spelling of 1242623592787 in words is "one trillion, two hundred forty-two billion, six hundred twenty-three million, five hundred ninety-two thousand, seven hundred eighty-seven".