87361680674 has 4 divisors (see below), whose sum is σ = 131042521014. Its totient is φ = 43680840336.

The previous prime is 87361680631. The next prime is 87361680677. The reversal of 87361680674 is 47608616378.

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., 86637801649 + 723879025 = 294343^2 + 26905^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87361680677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21840420167 + ... + 21840420170.

Almost surely, 2^87361680674 is an apocalyptic number.

87361680674 is a deficient number, since it is larger than the sum of its proper divisors (43680840340).

87361680674 is a wasteful number, since it uses less digits than its factorization.

87361680674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43680840339.

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 87361680674 in words is "eighty-seven billion, three hundred sixty-one million, six hundred eighty thousand, six hundred seventy-four".