21076696670 has 8 divisors (see below), whose sum is σ = 37938054024. Its totient is φ = 8430678664.

The previous prime is 21076696643. The next prime is 21076696681. The reversal of 21076696670 is 7669667012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1053834824 + ... + 1053834843.

It is an arithmetic number, because the mean of its divisors is an integer number (4742256753).

Almost surely, 2^21076696670 is an apocalyptic number.

21076696670 is a deficient number, since it is larger than the sum of its proper divisors (16861357354).

21076696670 is a wasteful number, since it uses less digits than its factorization.

21076696670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107669674.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The spelling of 21076696670 in words is "twenty-one billion, seventy-six million, six hundred ninety-six thousand, six hundred seventy".