20478076071 has 8 divisors (see below), whose sum is σ = 27313874544. Its totient is φ = 13647164160.

The previous prime is 20478076043. The next prime is 20478076079. The reversal of 20478076071 is 17067087402.

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

It is not a de Polignac number, because 20478076071 - 2¹⁷ = 20477944999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20478076079) 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, 1211850 + ... + 1228631.

It is an arithmetic number, because the mean of its divisors is an integer number (3414234318).

Almost surely, 2^20478076071 is an apocalyptic number.

20478076071 is a deficient number, since it is larger than the sum of its proper divisors (6835798473).

20478076071 is a wasteful number, since it uses less digits than its factorization.

20478076071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443281.

The product of its (nonzero) digits is 131712, while the sum is 42.

The spelling of 20478076071 in words is "twenty billion, four hundred seventy-eight million, seventy-six thousand, seventy-one".