20635124892 has 48 divisors (see below), whose sum is σ = 51056988192. Its totient is φ = 6464102400.

The previous prime is 20635124891. The next prime is 20635124893. The reversal of 20635124892 is 29842153602.

It is an interprime number because it is at equal distance from previous prime (20635124891) and next prime (20635124893).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20635124891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62142 + ... + 212442.

It is an arithmetic number, because the mean of its divisors is an integer number (1063687254).

Almost surely, 2^20635124892 is an apocalyptic number.

It is an amenable number.

20635124892 is an abundant number, since it is smaller than the sum of its proper divisors (30421863300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20635124892 is a wasteful number, since it uses less digits than its factorization.

20635124892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150998 (or 150996 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 20635124892 in words is "twenty billion, six hundred thirty-five million, one hundred twenty-four thousand, eight hundred ninety-two".