26472143646 has 48 divisors (see below), whose sum is σ = 61814267424. Its totient is φ = 8139218112.

The previous prime is 26472143629. The next prime is 26472143669. The reversal of 26472143646 is 64634127462.

26472143646 is a `hidden beast` number, since 264 + 7 + 21 + 4 + 364 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 278500 + ... + 361256.

It is an arithmetic number, because the mean of its divisors is an integer number (1287797238).

Almost surely, 2^26472143646 is an apocalyptic number.

26472143646 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

26472143646 is an abundant number, since it is smaller than the sum of its proper divisors (35342123778).

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

26472143646 is a wasteful number, since it uses less digits than its factorization.

26472143646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84145 (or 84142 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 45.

The spelling of 26472143646 in words is "twenty-six billion, four hundred seventy-two million, one hundred forty-three thousand, six hundred forty-six".