26984864760 has 128 divisors (see below), whose sum is σ = 97389043200. Its totient is φ = 5843335680.

The previous prime is 26984864759. The next prime is 26984864783. The reversal of 26984864760 is 6746848962.

It is a super-2 number, since 2×26984864760² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 26984864694 and 26984864703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 829431 + ... + 861350.

It is an arithmetic number, because the mean of its divisors is an integer number (760851900).

Almost surely, 2^26984864760 is an apocalyptic number.

26984864760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26984864760 is an abundant number, since it is smaller than the sum of its proper divisors (70404178440).

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

26984864760 is a wasteful number, since it uses less digits than its factorization.

26984864760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690821 (or 1690817 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 60.

The spelling of 26984864760 in words is "twenty-six billion, nine hundred eighty-four million, eight hundred sixty-four thousand, seven hundred sixty".