1239428500992 has 600 divisors, whose sum is σ = 4083385292448. Its totient is φ = 374004449280.

The previous prime is 1239428500991. The next prime is 1239428501023. The reversal of 1239428500992 is 2990058249321.

1239428500992 is a `hidden beast` number, since 1 + 2 + 3 + 9 + 42 + 8 + 500 + 9 + 92 = 666.

It is a super-2 number, since 2×1239428500992² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1239428500991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1841646768 + ... + 1841647440.

Almost surely, 2^{1239428500992} is an apocalyptic number.

1239428500992 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 1239428500992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2041692646224).

1239428500992 is an abundant number, since it is smaller than the sum of its proper divisors (2843956791456).

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

1239428500992 is an equidigital number, since it uses as much as digits as its factorization.

1239428500992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092 (or 1056 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 1239428500992 in words is "one trillion, two hundred thirty-nine billion, four hundred twenty-eight million, five hundred thousand, nine hundred ninety-two".