20823486377 has 8 divisors (see below), whose sum is σ = 21496930560. Its totient is φ = 20150149680.

The previous prime is 20823486367. The next prime is 20823486389. The reversal of 20823486377 is 77368432802.

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

It is a cyclic number.

It is not a de Polignac number, because 20823486377 - 2¹⁴ = 20823469993 is a prime.

It is a super-2 number, since 2×20823486377² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20823486317) 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, 597443 + ... + 631335.

It is an arithmetic number, because the mean of its divisors is an integer number (2687116320).

Almost surely, 2^20823486377 is an apocalyptic number.

It is an amenable number.

20823486377 is a deficient number, since it is larger than the sum of its proper divisors (673444183).

20823486377 is a wasteful number, since it uses less digits than its factorization.

20823486377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53743.

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 20823486377 in words is "twenty billion, eight hundred twenty-three million, four hundred eighty-six thousand, three hundred seventy-seven".