72674944091 has 2 divisors, whose sum is σ = 72674944092. Its totient is φ = 72674944090.

The previous prime is 72674944073. The next prime is 72674944103. The reversal of 72674944091 is 19044947627.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72674944091 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (72674944021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36337472045 + 36337472046.

It is an arithmetic number, because the mean of its divisors is an integer number (36337472046).

Almost surely, 2^72674944091 is an apocalyptic number.

72674944091 is a deficient number, since it is larger than the sum of its proper divisors (1).

72674944091 is an equidigital number, since it uses as much as digits as its factorization.

72674944091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3048192, while the sum is 53.

The spelling of 72674944091 in words is "seventy-two billion, six hundred seventy-four million, nine hundred forty-four thousand, ninety-one".