20630125742 has 8 divisors (see below), whose sum is σ = 31781545176. Its totient is φ = 10036277352.

The previous prime is 20630125727. The next prime is 20630125801. The reversal of 20630125742 is 24752103602.

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

It is a junction number, because it is equal to n+sod(n) for n = 20630125699 and 20630125708.

It is a congruent number.

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, 139392668 + ... + 139392815.

It is an arithmetic number, because the mean of its divisors is an integer number (3972693147).

Almost surely, 2^20630125742 is an apocalyptic number.

20630125742 is a deficient number, since it is larger than the sum of its proper divisors (11151419434).

20630125742 is a wasteful number, since it uses less digits than its factorization.

20630125742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278785522.

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 20630125742 in words is "twenty billion, six hundred thirty million, one hundred twenty-five thousand, seven hundred forty-two".