20834986755 has 16 divisors (see below), whose sum is σ = 36366522624. Its totient is φ = 10101811680.

The previous prime is 20834986709. The next prime is 20834986763. The reversal of 20834986755 is 55768943802.

It is not a de Polignac number, because 20834986755 - 2⁶ = 20834986691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20834986695 and 20834986704.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63136159 + ... + 63136488.

It is an arithmetic number, because the mean of its divisors is an integer number (2272907664).

Almost surely, 2^20834986755 is an apocalyptic number.

20834986755 is a deficient number, since it is larger than the sum of its proper divisors (15531535869).

20834986755 is a wasteful number, since it uses less digits than its factorization.

20834986755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126272666.

The product of its (nonzero) digits is 14515200, while the sum is 57.

The spelling of 20834986755 in words is "twenty billion, eight hundred thirty-four million, nine hundred eighty-six thousand, seven hundred fifty-five".