247491398492160 has 448 divisors, whose sum is σ = 806049085814784. Its totient is φ = 64827437875200.

The previous prime is 247491398492147. The next prime is 247491398492179. The reversal of 247491398492160 is 61294893194742.

It is a super-2 number, since 2×247491398492160² (a number of 30 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 (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2364281742 + ... + 2364386418.

It is an arithmetic number, because the mean of its divisors is an integer number (1799216709408).

Almost surely, 2^{247491398492160} is an apocalyptic number.

247491398492160 is a gapful number since it is divisible by the number (20) 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 247491398492160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403024542907392).

247491398492160 is an abundant number, since it is smaller than the sum of its proper divisors (558557687322624).

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

247491398492160 is a wasteful number, since it uses less digits than its factorization.

247491398492160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105053 (or 105029 counting only the distinct ones).

The product of its (nonzero) digits is 188116992, while the sum is 69.

The spelling of 247491398492160 in words is "two hundred forty-seven trillion, four hundred ninety-one billion, three hundred ninety-eight million, four hundred ninety-two thousand, one hundred sixty".