8780837728066 has 8 divisors (see below), whose sum is σ = 13171310021520. Its totient is φ = 4390401054228.

The previous prime is 8780837728051. The next prime is 8780837728081. The reversal of 8780837728066 is 6608277380878.

It is an interprime number because it is at equal distance from previous prime (8780837728051) and next prime (8780837728081).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×8780837728066² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8780837727986 and 8780837728004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8279836 + ... + 9279943.

It is an arithmetic number, because the mean of its divisors is an integer number (1646413752690).

Almost surely, 2^{8780837728066} is an apocalyptic number.

8780837728066 is a deficient number, since it is larger than the sum of its proper divisors (4390472293454).

8780837728066 is a wasteful number, since it uses less digits than its factorization.

8780837728066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17809808.

The product of its (nonzero) digits is 303464448, while the sum is 70.

The spelling of 8780837728066 in words is "eight trillion, seven hundred eighty billion, eight hundred thirty-seven million, seven hundred twenty-eight thousand, sixty-six".