73638154871 has 2 divisors, whose sum is σ = 73638154872. Its totient is φ = 73638154870.

The previous prime is 73638154867. The next prime is 73638154883. The reversal of 73638154871 is 17845183637.

It is a weak prime.

It is an emirp because it is prime and its reverse (17845183637) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73638154871 - 2² = 73638154867 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73638654871) by changing a digit.

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 as a sum of consecutive naturals, namely, 36819077435 + 36819077436.

It is an arithmetic number, because the mean of its divisors is an integer number (36819077436).

Almost surely, 2^73638154871 is an apocalyptic number.

73638154871 is a deficient number, since it is larger than the sum of its proper divisors (1).

73638154871 is an equidigital number, since it uses as much as digits as its factorization.

73638154871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3386880, while the sum is 53.

The spelling of 73638154871 in words is "seventy-three billion, six hundred thirty-eight million, one hundred fifty-four thousand, eight hundred seventy-one".