8521371458 has 16 divisors (see below), whose sum is σ = 12941099136. Its totient is φ = 4207711920.

The previous prime is 8521371457. The next prime is 8521371461. The reversal of 8521371458 is 8541731258.

It is a super-2 number, since 2×8521371458² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8521371457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493328 + ... + 510308.

It is an arithmetic number, because the mean of its divisors is an integer number (808818696).

Almost surely, 2^8521371458 is an apocalyptic number.

8521371458 is a deficient number, since it is larger than the sum of its proper divisors (4419727678).

8521371458 is a wasteful number, since it uses less digits than its factorization.

8521371458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20089.

The product of its digits is 268800, while the sum is 44.

The square root of 8521371458 is about 92311.2748151600. The cubic root of 8521371458 is about 2042.5365296765.

The spelling of 8521371458 in words is "eight billion, five hundred twenty-one million, three hundred seventy-one thousand, four hundred fifty-eight".