22878537765 has 16 divisors (see below), whose sum is σ = 36702254400. Its totient is φ = 12169688832.

The previous prime is 22878537761. The next prime is 22878537791. The reversal of 22878537765 is 56773587822.

It is not a de Polignac number, because 22878537765 - 2² = 22878537761 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22878537699 and 22878537708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22878537761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2006500 + ... + 2017869.

It is an arithmetic number, because the mean of its divisors is an integer number (2293890900).

Almost surely, 2^22878537765 is an apocalyptic number.

It is an amenable number.

22878537765 is a deficient number, since it is larger than the sum of its proper divisors (13823716635).

22878537765 is a wasteful number, since it uses less digits than its factorization.

22878537765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024756.

The product of its digits is 39513600, while the sum is 60.

The spelling of 22878537765 in words is "twenty-two billion, eight hundred seventy-eight million, five hundred thirty-seven thousand, seven hundred sixty-five".