8451916499524 has 9 divisors (see below), whose sum is σ = 14790864049437. Its totient is φ = 4225955342544.

The previous prime is 8451916499497. The next prime is 8451916499567. The reversal of 8451916499524 is 4259946191548.

The square root of 8451916499524 is 2907218.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 8303722297924 + 148194201600 = 2881618^2 + 384960^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8451916499524.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5087632 + ... + 6541240.

Almost surely, 2^{8451916499524} is an apocalyptic number.

8451916499524 is the 2907218-th square number.

It is an amenable number.

8451916499524 is a deficient number, since it is larger than the sum of its proper divisors (6338947549913).

8451916499524 is an frugal number, since it uses more digits than its factorization.

8451916499524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2907222 (or 1453611 counting only the distinct ones).

The product of its digits is 111974400, while the sum is 67.

The spelling of 8451916499524 in words is "eight trillion, four hundred fifty-one billion, nine hundred sixteen million, four hundred ninety-nine thousand, five hundred twenty-four".