42788472765 has 32 divisors (see below), whose sum is σ = 70695244800. Its totient is φ = 22076482560.

The previous prime is 42788472613. The next prime is 42788472787. The reversal of 42788472765 is 56727488724.

It is a happy number.

It is not a de Polignac number, because 42788472765 - 2⁹ = 42788472253 is a prime.

It is a super-2 number, since 2×42788472765² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42788472699 and 42788472708.

It is a congruent number.

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, 1421491 + ... + 1451279.

It is an arithmetic number, because the mean of its divisors is an integer number (2209226400).

Almost surely, 2^42788472765 is an apocalyptic number.

It is an amenable number.

42788472765 is a deficient number, since it is larger than the sum of its proper divisors (27906772035).

42788472765 is a wasteful number, since it uses less digits than its factorization.

42788472765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32917.

The product of its digits is 42147840, while the sum is 60.

The spelling of 42788472765 in words is "forty-two billion, seven hundred eighty-eight million, four hundred seventy-two thousand, seven hundred sixty-five".