72454667012 has 96 divisors (see below), whose sum is σ = 165897849600. Its totient is φ = 26869248000.

The previous prime is 72454666987. The next prime is 72454667023. The reversal of 72454667012 is 21076645427.

It is a happy number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 1529864 + ... + 1576512.

It is an arithmetic number, because the mean of its divisors is an integer number (1728102600).

Almost surely, 2^72454667012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72454667012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82948924800).

72454667012 is an abundant number, since it is smaller than the sum of its proper divisors (93443182588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72454667012 is a wasteful number, since it uses less digits than its factorization.

72454667012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46941 (or 46939 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 72454667012 in words is "seventy-two billion, four hundred fifty-four million, six hundred sixty-seven thousand, twelve".