20628058742 has 8 divisors (see below), whose sum is σ = 31002879600. Its totient is φ = 10293765544.

The previous prime is 20628058741. The next prime is 20628058777. The reversal of 20628058742 is 24785082602.

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 = 20628058693 and 20628058702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20628058741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10130642 + ... + 10132677.

It is an arithmetic number, because the mean of its divisors is an integer number (3875359950).

Almost surely, 2^20628058742 is an apocalyptic number.

20628058742 is a deficient number, since it is larger than the sum of its proper divisors (10374820858).

20628058742 is a wasteful number, since it uses less digits than its factorization.

20628058742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20263830.

The product of its (nonzero) digits is 430080, while the sum is 44.

The spelling of 20628058742 in words is "twenty billion, six hundred twenty-eight million, fifty-eight thousand, seven hundred forty-two".