21370755026 has 16 divisors (see below), whose sum is σ = 33525417024. Its totient is φ = 10197714384.

The previous prime is 21370755017. The next prime is 21370755041. The reversal of 21370755026 is 62055707312.

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, 503981 + ... + 544736.

It is an arithmetic number, because the mean of its divisors is an integer number (2095338564).

Almost surely, 2^21370755026 is an apocalyptic number.

21370755026 is a deficient number, since it is larger than the sum of its proper divisors (12154661998).

21370755026 is a wasteful number, since it uses less digits than its factorization.

21370755026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049185.

The product of its (nonzero) digits is 88200, while the sum is 38.

The spelling of 21370755026 in words is "twenty-one billion, three hundred seventy million, seven hundred fifty-five thousand, twenty-six".