26400282646 has 16 divisors (see below), whose sum is σ = 41020140240. Its totient is φ = 12728106720.

The previous prime is 26400282599. The next prime is 26400282677. The reversal of 26400282646 is 64628200462.

It is a super-2 number, since 2×26400282646² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26400282599 and 26400282608.

It is a congruent number.

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, 256740 + ... + 344551.

It is an arithmetic number, because the mean of its divisors is an integer number (2563758765).

Almost surely, 2^26400282646 is an apocalyptic number.

26400282646 is a deficient number, since it is larger than the sum of its proper divisors (14619857594).

26400282646 is a wasteful number, since it uses less digits than its factorization.

26400282646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602079.

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 26400282646 in words is "twenty-six billion, four hundred million, two hundred eighty-two thousand, six hundred forty-six".