20786288492 has 12 divisors (see below), whose sum is σ = 36382684800. Its totient is φ = 10391235696.

The previous prime is 20786288461. The next prime is 20786288503. The reversal of 20786288492 is 29488268702.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452492 + ... + 496307.

It is an arithmetic number, because the mean of its divisors is an integer number (3031890400).

Almost surely, 2^20786288492 is an apocalyptic number.

It is an amenable number.

20786288492 is a deficient number, since it is larger than the sum of its proper divisors (15596396308).

20786288492 is a wasteful number, since it uses less digits than its factorization.

20786288492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954280 (or 954278 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 56.

The spelling of 20786288492 in words is "twenty billion, seven hundred eighty-six million, two hundred eighty-eight thousand, four hundred ninety-two".