9212724780 has 96 divisors (see below), whose sum is σ = 29713022976. Its totient is φ = 2089172736.

The previous prime is 9212724749. The next prime is 9212724809. The reversal of 9212724780 is 874272129.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33019 + ... + 139698.

It is an arithmetic number, because the mean of its divisors is an integer number (309510656).

Almost surely, 2^9212724780 is an apocalyptic number.

It is an amenable number.

9212724780 is an abundant number, since it is smaller than the sum of its proper divisors (20500298196).

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

9212724780 is a wasteful number, since it uses less digits than its factorization.

9212724780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172863 (or 172861 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 9212724780 is about 95982.9400466562. The cubic root of 9212724780 is about 2096.3447206436.

The spelling of 9212724780 in words is "nine billion, two hundred twelve million, seven hundred twenty-four thousand, seven hundred eighty".