20193154852 has 96 divisors (see below), whose sum is σ = 40423993344. Its totient is φ = 8759577600.

The previous prime is 20193154843. The next prime is 20193154903. The reversal of 20193154852 is 25845139102.

It is a happy number.

It is a super-2 number, since 2×20193154852² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 18306933 + ... + 18308035.

It is an arithmetic number, because the mean of its divisors is an integer number (421083264).

Almost surely, 2^20193154852 is an apocalyptic number.

It is an amenable number.

20193154852 is an abundant number, since it is smaller than the sum of its proper divisors (20230838492).

20193154852 is a wasteful number, since it uses less digits than its factorization.

20193154852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469 (or 1467 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 20193154852 in words is "twenty billion, one hundred ninety-three million, one hundred fifty-four thousand, eight hundred fifty-two".