87662217736733 has 4 divisors (see below), whose sum is σ = 87662270938620. Its totient is φ = 87662164534848.

The previous prime is 87662217736721. The next prime is 87662217736741. The reversal of 87662217736733 is 33763771226678.

It is a happy number.

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 27671197956964 + 59991019779769 = 5260342^2 + 7745387^2 .

It is a cyclic number.

It is not a de Polignac number, because 87662217736733 - 2¹² = 87662217732637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87662217736783) 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, 24047660 + ... + 27452037.

It is an arithmetic number, because the mean of its divisors is an integer number (21915567734655).

Almost surely, 2^{87662217736733} is an apocalyptic number.

It is an amenable number.

87662217736733 is a deficient number, since it is larger than the sum of its proper divisors (53201887).

87662217736733 is a wasteful number, since it uses less digits than its factorization.

87662217736733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53201886.

The product of its digits is 448084224, while the sum is 68.

The spelling of 87662217736733 in words is "eighty-seven trillion, six hundred sixty-two billion, two hundred seventeen million, seven hundred thirty-six thousand, seven hundred thirty-three".