21076367112 has 48 divisors (see below), whose sum is σ = 58158853740. Its totient is φ = 6892898688.

The previous prime is 21076367107. The next prime is 21076367131. The reversal of 21076367112 is 21176367012.

It is a happy number.

21076367112 is a `hidden beast` number, since 2 + 1 + 0 + 7 + 636 + 7 + 1 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21063877956 + 12489156 = 145134^2 + 3534^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2757763 + ... + 2765394.

Almost surely, 2^21076367112 is an apocalyptic number.

It is an amenable number.

21076367112 is an abundant number, since it is smaller than the sum of its proper divisors (37082486628).

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

21076367112 is a wasteful number, since it uses less digits than its factorization.

21076367112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5523222 (or 5523215 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The spelling of 21076367112 in words is "twenty-one billion, seventy-six million, three hundred sixty-seven thousand, one hundred twelve".