247891367039 has 4 divisors (see below), whose sum is σ = 247894238280. Its totient is φ = 247888495800.

The previous prime is 247891367027. The next prime is 247891367063. The reversal of 247891367039 is 930763198742.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 247891367039 - 2⁸ = 247891366783 is a prime.

It is a super-2 number, since 2×247891367039² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247891367239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1301969 + ... + 1480170.

It is an arithmetic number, because the mean of its divisors is an integer number (61973559570).

Almost surely, 2^247891367039 is an apocalyptic number.

247891367039 is a deficient number, since it is larger than the sum of its proper divisors (2871241).

247891367039 is an equidigital number, since it uses as much as digits as its factorization.

247891367039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871240.

The product of its (nonzero) digits is 13716864, while the sum is 59.

The spelling of 247891367039 in words is "two hundred forty-seven billion, eight hundred ninety-one million, three hundred sixty-seven thousand, thirty-nine".