26277866056840 has 128 divisors (see below), whose sum is σ = 59765411628000. Its totient is φ = 10397970595840.

The previous prime is 26277866056837. The next prime is 26277866056951. The reversal of 26277866056840 is 4865066877262.

It can be written as a sum of positive squares in 16 ways, for example, as 843616532196 + 25434249524644 = 918486^2 + 5043238^2 .

It is a super-2 number, since 2×26277866056840² (a number of 28 digits) contains 22 as substring.

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, 2231281032 + ... + 2231292808.

Almost surely, 2^{26277866056840} is an apocalyptic number.

26277866056840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26277866056840 is an abundant number, since it is smaller than the sum of its proper divisors (33487545571160).

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

26277866056840 is a wasteful number, since it uses less digits than its factorization.

26277866056840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13435 (or 13431 counting only the distinct ones).

The product of its (nonzero) digits is 325140480, while the sum is 67.

The spelling of 26277866056840 in words is "twenty-six trillion, two hundred seventy-seven billion, eight hundred sixty-six million, fifty-six thousand, eight hundred forty".