87708583667242 has 4 divisors (see below), whose sum is σ = 131562875500866. Its totient is φ = 43854291833620.

The previous prime is 87708583667233. The next prime is 87708583667297. The reversal of 87708583667242 is 24276638580778.

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 only one way, i.e., 72237097576081 + 15471486091161 = 8499241^2 + 3933381^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21927145916809 + ... + 21927145916812.

Almost surely, 2^{87708583667242} is an apocalyptic number.

87708583667242 is a deficient number, since it is larger than the sum of its proper divisors (43854291833624).

87708583667242 is a wasteful number, since it uses less digits than its factorization.

87708583667242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43854291833623.

The product of its (nonzero) digits is 1517322240, while the sum is 73.

The spelling of 87708583667242 in words is "eighty-seven trillion, seven hundred eight billion, five hundred eighty-three million, six hundred sixty-seven thousand, two hundred forty-two".