26851517472 has 48 divisors (see below), whose sum is σ = 75907177920. Its totient is φ = 8262004992.

The previous prime is 26851517467. The next prime is 26851517503. The reversal of 26851517472 is 27471515862.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10756572 + ... + 10759067.

It is an arithmetic number, because the mean of its divisors is an integer number (1581399540).

Almost surely, 2^26851517472 is an apocalyptic number.

It is an amenable number.

26851517472 is an abundant number, since it is smaller than the sum of its proper divisors (49055660448).

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

26851517472 is a wasteful number, since it uses less digits than its factorization.

26851517472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21515665 (or 21515657 counting only the distinct ones).

The product of its digits is 940800, while the sum is 48.

The spelling of 26851517472 in words is "twenty-six billion, eight hundred fifty-one million, five hundred seventeen thousand, four hundred seventy-two".