26898237945 has 64 divisors (see below), whose sum is σ = 50412257280. Its totient is φ = 13587480000.

The previous prime is 26898237943. The next prime is 26898237953. The reversal of 26898237945 is 54973289862.

It is not a de Polignac number, because 26898237945 - 2¹ = 26898237943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26898237943) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 128320 + ... + 265070.

It is an arithmetic number, because the mean of its divisors is an integer number (787691520).

Almost surely, 2^26898237945 is an apocalyptic number.

It is an amenable number.

26898237945 is a deficient number, since it is larger than the sum of its proper divisors (23514019335).

26898237945 is a wasteful number, since it uses less digits than its factorization.

26898237945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136843 (or 136837 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

The spelling of 26898237945 in words is "twenty-six billion, eight hundred ninety-eight million, two hundred thirty-seven thousand, nine hundred forty-five".