18970474971 has 8 divisors (see below), whose sum is σ = 28907390464. Its totient is φ = 10840271400.

The previous prime is 18970474967. The next prime is 18970474987. The reversal of 18970474971 is 17947407981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18970474971 - 2² = 18970474967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18970474921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451677955 + ... + 451677996.

It is an arithmetic number, because the mean of its divisors is an integer number (3613423808).

Almost surely, 2^18970474971 is an apocalyptic number.

18970474971 is a deficient number, since it is larger than the sum of its proper divisors (9936915493).

18970474971 is an equidigital number, since it uses as much as digits as its factorization.

18970474971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903355961.

The product of its (nonzero) digits is 3556224, while the sum is 57.

The spelling of 18970474971 in words is "eighteen billion, nine hundred seventy million, four hundred seventy-four thousand, nine hundred seventy-one".