72417053313091 has 2 divisors, whose sum is σ = 72417053313092. Its totient is φ = 72417053313090.

The previous prime is 72417053313089. The next prime is 72417053313149. The reversal of 72417053313091 is 19031335071427.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72417053313091 - 2¹ = 72417053313089 is a prime.

It is a super-2 number, since 2×72417053313091² (a number of 29 digits) contains 22 as substring.

Together with 72417053313089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (72417053311091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36208526656545 + 36208526656546.

It is an arithmetic number, because the mean of its divisors is an integer number (36208526656546).

Almost surely, 2^{72417053313091} is an apocalyptic number.

72417053313091 is a deficient number, since it is larger than the sum of its proper divisors (1).

72417053313091 is an equidigital number, since it uses as much as digits as its factorization.

72417053313091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476280, while the sum is 46.

The spelling of 72417053313091 in words is "seventy-two trillion, four hundred seventeen billion, fifty-three million, three hundred thirteen thousand, ninety-one".