9471709978 has 16 divisors (see below), whose sum is σ = 14383777824. Its totient is φ = 4677385680.

The previous prime is 9471709939. The next prime is 9471710009. The reversal of 9471709978 is 8799071749.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3976 + ... + 137692.

It is an arithmetic number, because the mean of its divisors is an integer number (898986114).

Almost surely, 2^9471709978 is an apocalyptic number.

9471709978 is a deficient number, since it is larger than the sum of its proper divisors (4912067846).

9471709978 is a wasteful number, since it uses less digits than its factorization.

9471709978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134157.

The product of its (nonzero) digits is 8001504, while the sum is 61.

The square root of 9471709978 is about 97322.7104945192. The cubic root of 9471709978 is about 2115.8073940883.

The spelling of 9471709978 in words is "nine billion, four hundred seventy-one million, seven hundred nine thousand, nine hundred seventy-eight".