8456724690 has 32 divisors (see below), whose sum is σ = 20417685120. Its totient is φ = 2241621504.

The previous prime is 8456724677. The next prime is 8456724697. The reversal of 8456724690 is 964276548.

It is a super-2 number, since 2×8456724690² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8456724697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 838975 + ... + 848994.

It is an arithmetic number, because the mean of its divisors is an integer number (638052660).

Almost surely, 2^8456724690 is an apocalyptic number.

8456724690 is an abundant number, since it is smaller than the sum of its proper divisors (11960960430).

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

8456724690 is a wasteful number, since it uses less digits than its factorization.

8456724690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688146.

The product of its (nonzero) digits is 2903040, while the sum is 51.

The square root of 8456724690 is about 91960.4517714001. The cubic root of 8456724690 is about 2037.3582273794.

The spelling of 8456724690 in words is "eight billion, four hundred fifty-six million, seven hundred twenty-four thousand, six hundred ninety".