20786031453 has 32 divisors (see below), whose sum is σ = 30742659072. Its totient is φ = 12387513600.

The previous prime is 20786031443. The next prime is 20786031463. The reversal of 20786031453 is 35413068702.

It is an interprime number because it is at equal distance from previous prime (20786031443) and next prime (20786031463).

It is not a de Polignac number, because 20786031453 - 2⁴ = 20786031437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20786031443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 451638 + ... + 495528.

It is an arithmetic number, because the mean of its divisors is an integer number (960708096).

Almost surely, 2^20786031453 is an apocalyptic number.

It is an amenable number.

20786031453 is a deficient number, since it is larger than the sum of its proper divisors (9956627619).

20786031453 is a wasteful number, since it uses less digits than its factorization.

20786031453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44145.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 20786031453 in words is "twenty billion, seven hundred eighty-six million, thirty-one thousand, four hundred fifty-three".