20477048755 has 8 divisors (see below), whose sum is σ = 24573354624. Its totient is φ = 16381041600.

The previous prime is 20477048737. The next prime is 20477048759. The reversal of 20477048755 is 55784077402.

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

It is not a de Polignac number, because 20477048755 - 2⁹ = 20477048243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20477048699 and 20477048708.

It is not an unprimeable number, because it can be changed into a prime (20477048759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124375 + ... + 237535.

It is an arithmetic number, because the mean of its divisors is an integer number (3071669328).

Almost surely, 2^20477048755 is an apocalyptic number.

20477048755 is a deficient number, since it is larger than the sum of its proper divisors (4096305869).

20477048755 is a wasteful number, since it uses less digits than its factorization.

20477048755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149357.

The product of its (nonzero) digits is 2195200, while the sum is 49.

The spelling of 20477048755 in words is "twenty billion, four hundred seventy-seven million, forty-eight thousand, seven hundred fifty-five".