20127154252 has 24 divisors (see below), whose sum is σ = 37081175040. Its totient is φ = 9532671120.

The previous prime is 20127154247. The next prime is 20127154253. The reversal of 20127154252 is 25245172102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20127154253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 860253 + ... + 883339.

It is an arithmetic number, because the mean of its divisors is an integer number (1545048960).

Almost surely, 2^20127154252 is an apocalyptic number.

It is an amenable number.

20127154252 is a deficient number, since it is larger than the sum of its proper divisors (16954020788).

20127154252 is a wasteful number, since it uses less digits than its factorization.

20127154252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34581 (or 34579 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The spelling of 20127154252 in words is "twenty billion, one hundred twenty-seven million, one hundred fifty-four thousand, two hundred fifty-two".