72485387684 has 48 divisors (see below), whose sum is σ = 133700775936. Its totient is φ = 34347888000.

The previous prime is 72485387669. The next prime is 72485387717. The reversal of 72485387684 is 48678358427.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 890909 + ... + 968859.

It is an arithmetic number, because the mean of its divisors is an integer number (2785432832).

Almost surely, 2^72485387684 is an apocalyptic number.

72485387684 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

72485387684 is a deficient number, since it is larger than the sum of its proper divisors (61215388252).

72485387684 is a wasteful number, since it uses less digits than its factorization.

72485387684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78156 (or 78154 counting only the distinct ones).

The product of its digits is 72253440, while the sum is 62.

The spelling of 72485387684 in words is "seventy-two billion, four hundred eighty-five million, three hundred eighty-seven thousand, six hundred eighty-four".