428105620743 has 8 divisors (see below), whose sum is σ = 572362829568. Its totient is φ = 284626079544.

The previous prime is 428105620727. The next prime is 428105620759. The reversal of 428105620743 is 347026501824.

It is an interprime number because it is at equal distance from previous prime (428105620727) and next prime (428105620759).

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

It is not a de Polignac number, because 428105620743 - 2⁴ = 428105620727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 428105620695 and 428105620704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428105621743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194415621 + ... + 194417822.

It is an arithmetic number, because the mean of its divisors is an integer number (71545353696).

Almost surely, 2^428105620743 is an apocalyptic number.

428105620743 is a deficient number, since it is larger than the sum of its proper divisors (144257208825).

428105620743 is a wasteful number, since it uses less digits than its factorization.

428105620743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388833813.

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 428105620743 in words is "four hundred twenty-eight billion, one hundred five million, six hundred twenty thousand, seven hundred forty-three".