72478054199 has 2 divisors, whose sum is σ = 72478054200. Its totient is φ = 72478054198.

The previous prime is 72478054171. The next prime is 72478054211. The reversal of 72478054199 is 99145087427.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72478054199 - 2¹⁶ = 72477988663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72478054139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36239027099 + 36239027100.

It is an arithmetic number, because the mean of its divisors is an integer number (36239027100).

Almost surely, 2^72478054199 is an apocalyptic number.

72478054199 is a deficient number, since it is larger than the sum of its proper divisors (1).

72478054199 is an equidigital number, since it uses as much as digits as its factorization.

72478054199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 56.

The spelling of 72478054199 in words is "seventy-two billion, four hundred seventy-eight million, fifty-four thousand, one hundred ninety-nine".