72756823467 has 16 divisors (see below), whose sum is σ = 97456849280. Its totient is φ = 48281044032.

The previous prime is 72756823459. The next prime is 72756823483. The reversal of 72756823467 is 76432865727.

It is not a de Polignac number, because 72756823467 - 2³ = 72756823459 is a prime.

It is a super-2 number, since 2×72756823467² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72756823267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 749784 + ... + 841242.

It is an arithmetic number, because the mean of its divisors is an integer number (6091053080).

Almost surely, 2^72756823467 is an apocalyptic number.

72756823467 is a deficient number, since it is larger than the sum of its proper divisors (24700025813).

72756823467 is a wasteful number, since it uses less digits than its factorization.

72756823467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92682.

The product of its digits is 23708160, while the sum is 57.

The spelling of 72756823467 in words is "seventy-two billion, seven hundred fifty-six million, eight hundred twenty-three thousand, four hundred sixty-seven".