26290778908 has 12 divisors (see below), whose sum is σ = 46014785712. Its totient is φ = 13143697280.

The previous prime is 26290778903. The next prime is 26290778911. The reversal of 26290778908 is 80987709262.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26290778903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387760 + ... + 450487.

It is an arithmetic number, because the mean of its divisors is an integer number (3834565476).

Almost surely, 2^26290778908 is an apocalyptic number.

It is an amenable number.

26290778908 is a deficient number, since it is larger than the sum of its proper divisors (19724006804).

26290778908 is a wasteful number, since it uses less digits than its factorization.

26290778908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846092 (or 846090 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 58.

The spelling of 26290778908 in words is "twenty-six billion, two hundred ninety million, seven hundred seventy-eight thousand, nine hundred eight".