409970472178 has 4 divisors (see below), whose sum is σ = 614955708270. Its totient is φ = 204985236088.

The previous prime is 409970472097. The next prime is 409970472179. The reversal of 409970472178 is 871274079904.

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

It can be written as a sum of positive squares in only one way, i.e., 400938440809 + 9032031369 = 633197^2 + 95037^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (409970472179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102492618043 + ... + 102492618046.

Almost surely, 2^409970472178 is an apocalyptic number.

409970472178 is a deficient number, since it is larger than the sum of its proper divisors (204985236092).

409970472178 is a wasteful number, since it uses less digits than its factorization.

409970472178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204985236091.

The product of its (nonzero) digits is 7112448, while the sum is 58.

The spelling of 409970472178 in words is "four hundred nine billion, nine hundred seventy million, four hundred seventy-two thousand, one hundred seventy-eight".