72771684330701 has 2 divisors, whose sum is σ = 72771684330702. Its totient is φ = 72771684330700.

The previous prime is 72771684330671. The next prime is 72771684330749. The reversal of 72771684330701 is 10703348617727.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47096445409225 + 25675238921476 = 6862685^2 + 5067074^2 .

It is a cyclic number.

It is not a de Polignac number, because 72771684330701 - 2⁶ = 72771684330637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72771683330701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36385842165350 + 36385842165351.

It is an arithmetic number, because the mean of its divisors is an integer number (36385842165351).

Almost surely, 2^{72771684330701} is an apocalyptic number.

It is an amenable number.

72771684330701 is a deficient number, since it is larger than the sum of its proper divisors (1).

72771684330701 is an equidigital number, since it uses as much as digits as its factorization.

72771684330701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8297856, while the sum is 56.

The spelling of 72771684330701 in words is "seventy-two trillion, seven hundred seventy-one billion, six hundred eighty-four million, three hundred thirty thousand, seven hundred one".