1245355047792 has 30 divisors (see below), whose sum is σ = 3485264474432. Its totient is φ = 415118349216.

The previous prime is 1245355047779. The next prime is 1245355047829. The reversal of 1245355047792 is 2977405535421.

1245355047792 is a `hidden beast` number, since 1 + 2 + 4 + 5 + 35 + 50 + 477 + 92 = 666.

It is a super-2 number, since 2×1245355047792² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4324149328 + ... + 4324149615.

Almost surely, 2^{1245355047792} is an apocalyptic number.

1245355047792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1245355047792 is an abundant number, since it is smaller than the sum of its proper divisors (2239909426640).

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

1245355047792 is a wasteful number, since it uses less digits than its factorization.

1245355047792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8648298957 (or 8648298948 counting only the distinct ones).

The product of its (nonzero) digits is 10584000, while the sum is 54.

The spelling of 1245355047792 in words is "one trillion, two hundred forty-five billion, three hundred fifty-five million, forty-seven thousand, seven hundred ninety-two".