21152036435 has 8 divisors (see below), whose sum is σ = 25447696560. Its totient is φ = 16878127264.

The previous prime is 21152036393. The next prime is 21152036441. The reversal of 21152036435 is 53463025112.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 21152036435 - 2¹² = 21152032339 is a prime.

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, 5435597 + ... + 5439486.

It is an arithmetic number, because the mean of its divisors is an integer number (3180962070).

Almost surely, 2^21152036435 is an apocalyptic number.

21152036435 is a deficient number, since it is larger than the sum of its proper divisors (4295660125).

21152036435 is a wasteful number, since it uses less digits than its factorization.

21152036435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10875477.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 21152036435 in words is "twenty-one billion, one hundred fifty-two million, thirty-six thousand, four hundred thirty-five".