20153531426 has 8 divisors (see below), whose sum is σ = 34548911040. Its totient is φ = 8637227748.

The previous prime is 20153531423. The next prime is 20153531507. The reversal of 20153531426 is 62413535102.

It is a happy number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20153531392 and 20153531401.

It is not an unprimeable number, because it can be changed into a prime (20153531423) 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 3 ways as a sum of consecutive naturals, for example, 719768966 + ... + 719768993.

It is an arithmetic number, because the mean of its divisors is an integer number (4318613880).

Almost surely, 2^20153531426 is an apocalyptic number.

20153531426 is a deficient number, since it is larger than the sum of its proper divisors (14395379614).

20153531426 is a wasteful number, since it uses less digits than its factorization.

20153531426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439537968.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 20153531426 in words is "twenty billion, one hundred fifty-three million, five hundred thirty-one thousand, four hundred twenty-six".