20268530788 has 24 divisors (see below), whose sum is σ = 38698642080. Its totient is φ = 9211974720.

The previous prime is 20268530761. The next prime is 20268530797. The reversal of 20268530788 is 88703586202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523795 + ... + 561157.

It is an arithmetic number, because the mean of its divisors is an integer number (1612443420).

Almost surely, 2^20268530788 is an apocalyptic number.

It is an amenable number.

20268530788 is a deficient number, since it is larger than the sum of its proper divisors (18430111292).

20268530788 is a wasteful number, since it uses less digits than its factorization.

20268530788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49707 (or 49705 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 20268530788 in words is "twenty billion, two hundred sixty-eight million, five hundred thirty thousand, seven hundred eighty-eight".