72854013091 has 2 divisors, whose sum is σ = 72854013092. Its totient is φ = 72854013090.

The previous prime is 72854013061. The next prime is 72854013119. The reversal of 72854013091 is 19031045827.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72854013091 - 2¹⁷ = 72853882019 is a prime.

It is not a weakly prime, because it can be changed into another prime (72854013061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36427006545 + 36427006546.

It is an arithmetic number, because the mean of its divisors is an integer number (36427006546).

Almost surely, 2^72854013091 is an apocalyptic number.

72854013091 is a deficient number, since it is larger than the sum of its proper divisors (1).

72854013091 is an equidigital number, since it uses as much as digits as its factorization.

72854013091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 72854013091 in words is "seventy-two billion, eight hundred fifty-four million, thirteen thousand, ninety-one".