26538950672 has 20 divisors (see below), whose sum is σ = 55374541740. Its totient is φ = 12248746368.

The previous prime is 26538950671. The next prime is 26538950677. The reversal of 26538950672 is 27605983562.

It can be written as a sum of positive squares in 2 ways, for example, as 7330099456 + 19208851216 = 85616^2 + 138596^2 .

It is not an unprimeable number, because it can be changed into a prime (26538950671) 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, 63795347 + ... + 63795762.

It is an arithmetic number, because the mean of its divisors is an integer number (2768727087).

Almost surely, 2^26538950672 is an apocalyptic number.

It is an amenable number.

26538950672 is an abundant number, since it is smaller than the sum of its proper divisors (28835591068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26538950672 is a wasteful number, since it uses less digits than its factorization.

26538950672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127591130 (or 127591124 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 53.

The spelling of 26538950672 in words is "twenty-six billion, five hundred thirty-eight million, nine hundred fifty thousand, six hundred seventy-two".