20477316234 has 64 divisors (see below), whose sum is σ = 43415285760. Its totient is φ = 6420928320.

The previous prime is 20477316229. The next prime is 20477316239. The reversal of 20477316234 is 43261377402.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20477316229) and next prime (20477316239).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20477316192 and 20477316201.

It is not an unprimeable number, because it can be changed into a prime (20477316239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11002464 + ... + 11004324.

It is an arithmetic number, because the mean of its divisors is an integer number (678363840).

Almost surely, 2^20477316234 is an apocalyptic number.

20477316234 is an abundant number, since it is smaller than the sum of its proper divisors (22937969526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20477316234 is a wasteful number, since it uses less digits than its factorization.

20477316234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515.

The product of its (nonzero) digits is 169344, while the sum is 39.

The spelling of 20477316234 in words is "twenty billion, four hundred seventy-seven million, three hundred sixteen thousand, two hundred thirty-four".