20479887034 has 8 divisors (see below), whose sum is σ = 30748570740. Its totient is φ = 10230363456.

The previous prime is 20479887013. The next prime is 20479887053. The reversal of 20479887034 is 43078897402.

It can be written as a sum of positive squares in 2 ways, for example, as 20190989025 + 288898009 = 142095^2 + 16997^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4787359 + ... + 4791634.

Almost surely, 2^20479887034 is an apocalyptic number.

20479887034 is a deficient number, since it is larger than the sum of its proper divisors (10268683706).

20479887034 is a wasteful number, since it uses less digits than its factorization.

20479887034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9580064.

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 20479887034 in words is "twenty billion, four hundred seventy-nine million, eight hundred eighty-seven thousand, thirty-four".