42758077785 has 32 divisors (see below), whose sum is σ = 68903827200. Its totient is φ = 22640817408.

The previous prime is 42758077777. The next prime is 42758077801. The reversal of 42758077785 is 58777085724.

It is not a de Polignac number, because 42758077785 - 2³ = 42758077777 is a prime.

It is a super-2 number, since 2×42758077785² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8595559 + ... + 8600531.

It is an arithmetic number, because the mean of its divisors is an integer number (2153244600).

Almost surely, 2^42758077785 is an apocalyptic number.

It is an amenable number.

42758077785 is a deficient number, since it is larger than the sum of its proper divisors (26145749415).

42758077785 is a wasteful number, since it uses less digits than its factorization.

42758077785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8977.

The product of its (nonzero) digits is 30732800, while the sum is 60.

The spelling of 42758077785 in words is "forty-two billion, seven hundred fifty-eight million, seventy-seven thousand, seven hundred eighty-five".