20479297402 has 8 divisors (see below), whose sum is σ = 32335732800. Its totient is φ = 9700719804.

The previous prime is 20479297387. The next prime is 20479297429.

20479297402 is nontrivially palindromic in base 10.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269464402 + ... + 269464477.

It is an arithmetic number, because the mean of its divisors is an integer number (4041966600).

Almost surely, 2^20479297402 is an apocalyptic number.

20479297402 is a deficient number, since it is larger than the sum of its proper divisors (11856435398).

20479297402 is a wasteful number, since it uses less digits than its factorization.

20479297402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538928900.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 20479297402 in words is "twenty billion, four hundred seventy-nine million, two hundred ninety-seven thousand, four hundred two".