8478780351 has 4 divisors (see below), whose sum is σ = 11305040472. Its totient is φ = 5652520232.

The previous prime is 8478780341. The next prime is 8478780383. The reversal of 8478780351 is 1530878748.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8478780351 - 2⁶ = 8478780287 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8478780294 and 8478780303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8478780341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1413130056 + ... + 1413130061.

It is an arithmetic number, because the mean of its divisors is an integer number (2826260118).

Almost surely, 2^8478780351 is an apocalyptic number.

8478780351 is a deficient number, since it is larger than the sum of its proper divisors (2826260121).

8478780351 is a wasteful number, since it uses less digits than its factorization.

8478780351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2826260120.

The product of its (nonzero) digits is 1505280, while the sum is 51.

The square root of 8478780351 is about 92080.2929567451. The cubic root of 8478780351 is about 2039.1278752388.

The spelling of 8478780351 in words is "eight billion, four hundred seventy-eight million, seven hundred eighty thousand, three hundred fifty-one".