8478461942 has 4 divisors (see below), whose sum is σ = 12717692916. Its totient is φ = 4239230970.

The previous prime is 8478461933. The next prime is 8478461987. The reversal of 8478461942 is 2491648748.

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

It is a super-2 number, since 2×8478461942² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2119615484 + ... + 2119615487.

It is an arithmetic number, because the mean of its divisors is an integer number (3179423229).

Almost surely, 2^8478461942 is an apocalyptic number.

8478461942 is a deficient number, since it is larger than the sum of its proper divisors (4239230974).

8478461942 is a wasteful number, since it uses less digits than its factorization.

8478461942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4239230973.

The product of its digits is 3096576, while the sum is 53.

The square root of 8478461942 is about 92078.5639657787. The cubic root of 8478461942 is about 2039.1023493664.

The spelling of 8478461942 in words is "eight billion, four hundred seventy-eight million, four hundred sixty-one thousand, nine hundred forty-two".