20270933775 has 48 divisors (see below), whose sum is σ = 38244948000. Its totient is φ = 10518958080.

The previous prime is 20270933747. The next prime is 20270933783. The reversal of 20270933775 is 57733907202.

20270933775 is a `hidden beast` number, since 2 + 0 + 270 + 9 + 3 + 377 + 5 = 666.

It is not a de Polignac number, because 20270933775 - 2⁵ = 20270933743 is a prime.

It is a super-2 number, since 2×20270933775² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 20270933775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 380850 + ... + 430799.

It is an arithmetic number, because the mean of its divisors is an integer number (796769750).

Almost surely, 2^20270933775 is an apocalyptic number.

20270933775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20270933775 is a deficient number, since it is larger than the sum of its proper divisors (17974014225).

20270933775 is a wasteful number, since it uses less digits than its factorization.

20270933775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811705 (or 811694 counting only the distinct ones).

The product of its (nonzero) digits is 555660, while the sum is 45.

The spelling of 20270933775 in words is "twenty billion, two hundred seventy million, nine hundred thirty-three thousand, seven hundred seventy-five".