8478545902 has 32 divisors (see below), whose sum is σ = 13504060800. Its totient is φ = 3981247200.

The previous prime is 8478545857. The next prime is 8478545947. The reversal of 8478545902 is 2095458748.

It is an interprime number because it is at equal distance from previous prime (8478545857) and next prime (8478545947).

It is a super-2 number, since 2×8478545902² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8478545902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2154877 + ... + 2158807.

It is an arithmetic number, because the mean of its divisors is an integer number (422001900).

Almost surely, 2^8478545902 is an apocalyptic number.

8478545902 is a deficient number, since it is larger than the sum of its proper divisors (5025514898).

8478545902 is a wasteful number, since it uses less digits than its factorization.

8478545902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4432.

The product of its (nonzero) digits is 3225600, while the sum is 52.

The square root of 8478545902 is about 92079.0198796664. The cubic root of 8478545902 is about 2039.1090802440.

The spelling of 8478545902 in words is "eight billion, four hundred seventy-eight million, five hundred forty-five thousand, nine hundred two".