72844510147 has 2 divisors, whose sum is σ = 72844510148. Its totient is φ = 72844510146.

The previous prime is 72844510133. The next prime is 72844510157. The reversal of 72844510147 is 74101544827.

It is a strong prime.

It is an emirp because it is prime and its reverse (74101544827) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72844510147 - 2¹⁵ = 72844477379 is a prime.

It is not a weakly prime, because it can be changed into another prime (72844510127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36422255073 + 36422255074.

It is an arithmetic number, because the mean of its divisors is an integer number (36422255074).

Almost surely, 2^72844510147 is an apocalyptic number.

72844510147 is a deficient number, since it is larger than the sum of its proper divisors (1).

72844510147 is an equidigital number, since it uses as much as digits as its factorization.

72844510147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 250880, while the sum is 43.

The spelling of 72844510147 in words is "seventy-two billion, eight hundred forty-four million, five hundred ten thousand, one hundred forty-seven".