42428020785 has 16 divisors (see below), whose sum is σ = 68066839104. Its totient is φ = 22567609152.

The previous prime is 42428020763. The next prime is 42428020807. The reversal of 42428020785 is 58702082424.

It is an interprime number because it is at equal distance from previous prime (42428020763) and next prime (42428020807).

It is not a de Polignac number, because 42428020785 - 2⁶ = 42428020721 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3786007 + ... + 3797196.

It is an arithmetic number, because the mean of its divisors is an integer number (4254177444).

Almost surely, 2^42428020785 is an apocalyptic number.

It is an amenable number.

42428020785 is a deficient number, since it is larger than the sum of its proper divisors (25638818319).

42428020785 is a wasteful number, since it uses less digits than its factorization.

42428020785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7583584.

The product of its (nonzero) digits is 286720, while the sum is 42.

The spelling of 42428020785 in words is "forty-two billion, four hundred twenty-eight million, twenty thousand, seven hundred eighty-five".