72081214546 has 16 divisors (see below), whose sum is σ = 124159030560. Its totient is φ = 31039757280.

The previous prime is 72081214537. The next prime is 72081214591. The reversal of 72081214546 is 64541218027.

It is a super-2 number, since 2×72081214546² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72081214499 and 72081214508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86221131 + ... + 86221966.

It is an arithmetic number, because the mean of its divisors is an integer number (7759939410).

Almost surely, 2^72081214546 is an apocalyptic number.

72081214546 is a deficient number, since it is larger than the sum of its proper divisors (52077816014).

72081214546 is a wasteful number, since it uses less digits than its factorization.

72081214546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172443129.

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 72081214546 in words is "seventy-two billion, eighty-one million, two hundred fourteen thousand, five hundred forty-six".