247945491167 has 64 divisors (see below), whose sum is σ = 305357299200. Its totient is φ = 198711636480.

The previous prime is 247945491161. The next prime is 247945491173. The reversal of 247945491167 is 761194549742.

It is an interprime number because it is at equal distance from previous prime (247945491161) and next prime (247945491173).

It is a cyclic number.

It is not a de Polignac number, because 247945491167 - 2²⁸ = 247677055711 is a prime.

It is a super-2 number, since 2×247945491167² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247945491161) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23990333 + ... + 24000665.

It is an arithmetic number, because the mean of its divisors is an integer number (4771207800).

Almost surely, 2^247945491167 is an apocalyptic number.

247945491167 is a deficient number, since it is larger than the sum of its proper divisors (57411808033).

247945491167 is a wasteful number, since it uses less digits than its factorization.

247945491167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10536.

The product of its digits is 15240960, while the sum is 59.

The spelling of 247945491167 in words is "two hundred forty-seven billion, nine hundred forty-five million, four hundred ninety-one thousand, one hundred sixty-seven".