72946640824427 has 2 divisors, whose sum is σ = 72946640824428. Its totient is φ = 72946640824426.

The previous prime is 72946640824319. The next prime is 72946640824507. The reversal of 72946640824427 is 72442804664927.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72946640824427 - 2²⁶ = 72946573715563 is a prime.

It is not a weakly prime, because it can be changed into another prime (72946640824027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36473320412213 + 36473320412214.

It is an arithmetic number, because the mean of its divisors is an integer number (36473320412214).

Almost surely, 2^{72946640824427} is an apocalyptic number.

72946640824427 is a deficient number, since it is larger than the sum of its proper divisors (1).

72946640824427 is an equidigital number, since it uses as much as digits as its factorization.

72946640824427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 260112384, while the sum is 65.

The spelling of 72946640824427 in words is "seventy-two trillion, nine hundred forty-six billion, six hundred forty million, eight hundred twenty-four thousand, four hundred twenty-seven".