72467348899969 has 4 divisors (see below), whose sum is σ = 73655338226260. Its totient is φ = 71279359573680.

The previous prime is 72467348899943. The next prime is 72467348899991. The reversal of 72467348899969 is 96999884376427.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15076042652944 + 57391306247025 = 3882788^2 + 7575705^2 .

It is a cyclic number.

It is not a de Polignac number, because 72467348899969 - 2⁹ = 72467348899457 is a prime.

It is a super-2 number, since 2×72467348899969² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72467348899469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 593994663054 + ... + 593994663175.

It is an arithmetic number, because the mean of its divisors is an integer number (18413834556565).

Almost surely, 2^{72467348899969} is an apocalyptic number.

It is an amenable number.

72467348899969 is a deficient number, since it is larger than the sum of its proper divisors (1187989326291).

72467348899969 is a wasteful number, since it uses less digits than its factorization.

72467348899969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187989326290.

The product of its digits is 71108222976, while the sum is 91.

The spelling of 72467348899969 in words is "seventy-two trillion, four hundred sixty-seven billion, three hundred forty-eight million, eight hundred ninety-nine thousand, nine hundred sixty-nine".