72893631049 has 2 divisors, whose sum is σ = 72893631050. Its totient is φ = 72893631048.

The previous prime is 72893631017. The next prime is 72893631113. The reversal of 72893631049 is 94013639827.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70102093824 + 2791537225 = 264768^2 + 52835^2 .

It is a cyclic number.

It is not a de Polignac number, because 72893631049 - 2⁵ = 72893631017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72893630987 and 72893631005.

It is not a weakly prime, because it can be changed into another prime (72893635049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36446815524 + 36446815525.

It is an arithmetic number, because the mean of its divisors is an integer number (36446815525).

Almost surely, 2^72893631049 is an apocalyptic number.

It is an amenable number.

72893631049 is a deficient number, since it is larger than the sum of its proper divisors (1).

72893631049 is an equidigital number, since it uses as much as digits as its factorization.

72893631049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 72893631049 in words is "seventy-two billion, eight hundred ninety-three million, six hundred thirty-one thousand, forty-nine".