26776692945 has 48 divisors (see below), whose sum is σ = 49207768272. Its totient is φ = 13423165440.

The previous prime is 26776692923. The next prime is 26776692947. The reversal of 26776692945 is 54929667762.

It can be written as a sum of positive squares in 8 ways, for example, as 6170256 + 26770522689 = 2484^2 + 163617^2 .

It is not a de Polignac number, because 26776692945 - 2¹⁴ = 26776676561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26776692947) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 568705 + ... + 613985.

It is an arithmetic number, because the mean of its divisors is an integer number (1025161839).

Almost surely, 2^26776692945 is an apocalyptic number.

It is an amenable number.

26776692945 is a deficient number, since it is larger than the sum of its proper divisors (22431075327).

26776692945 is a wasteful number, since it uses less digits than its factorization.

26776692945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46082 (or 46079 counting only the distinct ones).

The product of its digits is 68584320, while the sum is 63.

The spelling of 26776692945 in words is "twenty-six billion, seven hundred seventy-six million, six hundred ninety-two thousand, nine hundred forty-five".