72635377288091 has 2 divisors, whose sum is σ = 72635377288092. Its totient is φ = 72635377288090.

The previous prime is 72635377288021. The next prime is 72635377288141. The reversal of 72635377288091 is 19088277353627.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72635377288091 is a prime.

It is a super-2 number, since 2×72635377288091² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (72635377288021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36317688644045 + 36317688644046.

It is an arithmetic number, because the mean of its divisors is an integer number (36317688644046).

Almost surely, 2^{72635377288091} is an apocalyptic number.

72635377288091 is a deficient number, since it is larger than the sum of its proper divisors (1).

72635377288091 is an equidigital number, since it uses as much as digits as its factorization.

72635377288091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 213373440, while the sum is 68.

The spelling of 72635377288091 in words is "seventy-two trillion, six hundred thirty-five billion, three hundred seventy-seven million, two hundred eighty-eight thousand, ninety-one".