1247304494390 has 8 divisors (see below), whose sum is σ = 2245148089920. Its totient is φ = 498921797752.

The previous prime is 1247304494377. The next prime is 1247304494467. The reversal of 1247304494390 is 934944037421.

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

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 3 ways as a sum of consecutive naturals, for example, 62365224710 + ... + 62365224729.

It is an arithmetic number, because the mean of its divisors is an integer number (280643511240).

Almost surely, 2^{1247304494390} is an apocalyptic number.

1247304494390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1247304494390 is a deficient number, since it is larger than the sum of its proper divisors (997843595530).

1247304494390 is a wasteful number, since it uses less digits than its factorization.

1247304494390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124730449446.

The product of its (nonzero) digits is 2612736, while the sum is 50.

The spelling of 1247304494390 in words is "one trillion, two hundred forty-seven billion, three hundred four million, four hundred ninety-four thousand, three hundred ninety".