20135254254 has 8 divisors (see below), whose sum is σ = 40270508520. Its totient is φ = 6711751416.

The previous prime is 20135254211. The next prime is 20135254369. The reversal of 20135254254 is 45245253102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

20135254254 is an admirable number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1677937849 + ... + 1677937860.

It is an arithmetic number, because the mean of its divisors is an integer number (5033813565).

Almost surely, 2^20135254254 is an apocalyptic number.

20135254254 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20135254254 is a wasteful number, since it uses less digits than its factorization.

20135254254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355875714.

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 20135254254 in words is "twenty billion, one hundred thirty-five million, two hundred fifty-four thousand, two hundred fifty-four".