8157618783480 has 256 divisors, whose sum is σ = 25986692160000. Its totient is φ = 2041542033408.

The previous prime is 8157618783467. The next prime is 8157618783529. The reversal of 8157618783480 is 843878167518.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1990146471 + ... + 1990150569.

It is an arithmetic number, because the mean of its divisors is an integer number (101510516250).

Almost surely, 2^{8157618783480} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8157618783480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12993346080000).

8157618783480 is an abundant number, since it is smaller than the sum of its proper divisors (17829073376520).

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

8157618783480 is a wasteful number, since it uses less digits than its factorization.

8157618783480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6686 (or 6682 counting only the distinct ones).

The product of its (nonzero) digits is 72253440, while the sum is 66.

The spelling of 8157618783480 in words is "eight trillion, one hundred fifty-seven billion, six hundred eighteen million, seven hundred eighty-three thousand, four hundred eighty".