72837314673391 has 2 divisors, whose sum is σ = 72837314673392. Its totient is φ = 72837314673390.

The previous prime is 72837314673329. The next prime is 72837314673437. The reversal of 72837314673391 is 19337641373827.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72837314673391 - 2¹¹ = 72837314671343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72837314673191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36418657336695 + 36418657336696.

It is an arithmetic number, because the mean of its divisors is an integer number (36418657336696).

Almost surely, 2^{72837314673391} is an apocalyptic number.

72837314673391 is a deficient number, since it is larger than the sum of its proper divisors (1).

72837314673391 is an equidigital number, since it uses as much as digits as its factorization.

72837314673391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96018048, while the sum is 64.

The spelling of 72837314673391 in words is "seventy-two trillion, eight hundred thirty-seven billion, three hundred fourteen million, six hundred seventy-three thousand, three hundred ninety-one".