72901692498469 has 2 divisors, whose sum is σ = 72901692498470. Its totient is φ = 72901692498468.

The previous prime is 72901692498431. The next prime is 72901692498473. The reversal of 72901692498469 is 96489429610927.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71215252621569 + 1686439876900 = 8438913^2 + 1298630^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72901692498469 is a prime.

It is a super-2 number, since 2×72901692498469² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72901692498395 and 72901692498404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72901692496469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36450846249234 + 36450846249235.

It is an arithmetic number, because the mean of its divisors is an integer number (36450846249235).

Almost surely, 2^{72901692498469} is an apocalyptic number.

It is an amenable number.

72901692498469 is a deficient number, since it is larger than the sum of its proper divisors (1).

72901692498469 is an equidigital number, since it uses as much as digits as its factorization.

72901692498469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846526464, while the sum is 76.

The spelling of 72901692498469 in words is "seventy-two trillion, nine hundred one billion, six hundred ninety-two million, four hundred ninety-eight thousand, four hundred sixty-nine".