681148472 has 16 divisors (see below), whose sum is σ = 1282638240. Its totient is φ = 339111616.

The previous prime is 681148439. The next prime is 681148477. The reversal of 681148472 is 274841186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681148477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180848 + ... + 184575.

It is an arithmetic number, because the mean of its divisors is an integer number (80164890).

Almost surely, 2^681148472 is an apocalyptic number.

It is an amenable number.

681148472 is a deficient number, since it is larger than the sum of its proper divisors (601489768).

681148472 is a wasteful number, since it uses less digits than its factorization.

681148472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365662 (or 365658 counting only the distinct ones).

The product of its digits is 86016, while the sum is 41.

The square root of 681148472 is about 26098.8212760653. The cubic root of 681148472 is about 879.8607183145.

The spelling of 681148472 in words is "six hundred eighty-one million, one hundred forty-eight thousand, four hundred seventy-two".