20631627434 has 8 divisors (see below), whose sum is σ = 33760844928. Its totient is φ = 9378012460.

The previous prime is 20631627403. The next prime is 20631627473. The reversal of 20631627434 is 43472613602.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 468900602 + ... + 468900645.

It is an arithmetic number, because the mean of its divisors is an integer number (4220105616).

Almost surely, 2^20631627434 is an apocalyptic number.

20631627434 is a deficient number, since it is larger than the sum of its proper divisors (13129217494).

20631627434 is a wasteful number, since it uses less digits than its factorization.

20631627434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937801260.

The product of its (nonzero) digits is 145152, while the sum is 38.

The spelling of 20631627434 in words is "twenty billion, six hundred thirty-one million, six hundred twenty-seven thousand, four hundred thirty-four".