26390037650 has 24 divisors (see below), whose sum is σ = 51668917680. Its totient is φ = 10000434960.

The previous prime is 26390037637. The next prime is 26390037677. The reversal of 26390037650 is 5673009362.

It is a junction number, because it is equal to n+sod(n) for n = 26390037598 and 26390037607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13888544 + ... + 13890443.

It is an arithmetic number, because the mean of its divisors is an integer number (2152871570).

Almost surely, 2^26390037650 is an apocalyptic number.

26390037650 is a deficient number, since it is larger than the sum of its proper divisors (25278880030).

26390037650 is a wasteful number, since it uses less digits than its factorization.

26390037650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27779018 (or 27779013 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 41.

The spelling of 26390037650 in words is "twenty-six billion, three hundred ninety million, thirty-seven thousand, six hundred fifty".