72454436347 has 2 divisors, whose sum is σ = 72454436348. Its totient is φ = 72454436346.

The previous prime is 72454436321. The next prime is 72454436387. The reversal of 72454436347 is 74363445427.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72454436347 - 2³¹ = 70306952699 is a prime.

It is a super-2 number, since 2×72454436347² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72454436347.

It is not a weakly prime, because it can be changed into another prime (72454436387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36227218173 + 36227218174.

It is an arithmetic number, because the mean of its divisors is an integer number (36227218174).

Almost surely, 2^72454436347 is an apocalyptic number.

72454436347 is a deficient number, since it is larger than the sum of its proper divisors (1).

72454436347 is an equidigital number, since it uses as much as digits as its factorization.

72454436347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6773760, while the sum is 49.

The spelling of 72454436347 in words is "seventy-two billion, four hundred fifty-four million, four hundred thirty-six thousand, three hundred forty-seven".