136471321633 has 4 divisors (see below), whose sum is σ = 136472570388. Its totient is φ = 136470072880.

The previous prime is 136471321631. The next prime is 136471321639. The reversal of 136471321633 is 336123174631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 94933620769 + 41537700864 = 308113^2 + 203808^2 .

It is a cyclic number.

It is not a de Polignac number, because 136471321633 - 2¹ = 136471321631 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136471321631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442858 + ... + 684883.

It is an arithmetic number, because the mean of its divisors is an integer number (34118142597).

Almost surely, 2^136471321633 is an apocalyptic number.

It is an amenable number.

136471321633 is a deficient number, since it is larger than the sum of its proper divisors (1248755).

136471321633 is a wasteful number, since it uses less digits than its factorization.

136471321633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248754.

The product of its digits is 163296, while the sum is 40.

The spelling of 136471321633 in words is "one hundred thirty-six billion, four hundred seventy-one million, three hundred twenty-one thousand, six hundred thirty-three".