20847883275 has 60 divisors (see below), whose sum is σ = 40889170872. Its totient is φ = 10464802560.

The previous prime is 20847883271. The next prime is 20847883291. The reversal of 20847883275 is 57238874802.

20847883275 is a `hidden beast` number, since 20 + 8 + 478 + 83 + 2 + 75 = 666.

It is not a de Polignac number, because 20847883275 - 2² = 20847883271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20847883271) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 268377 + ... + 337226.

Almost surely, 2^20847883275 is an apocalyptic number.

20847883275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20847883275 is a deficient number, since it is larger than the sum of its proper divisors (20041287597).

20847883275 is a wasteful number, since it uses less digits than its factorization.

20847883275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605642 (or 605628 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 54.

The spelling of 20847883275 in words is "twenty billion, eight hundred forty-seven million, eight hundred eighty-three thousand, two hundred seventy-five".