87567371378 has 8 divisors (see below), whose sum is σ = 131581904220. Its totient is φ = 43706736640.

The previous prime is 87567371369. The next prime is 87567371387. The reversal of 87567371378 is 87317376578.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (87567371369) and next prime (87567371387).

It can be written as a sum of positive squares in 2 ways, for example, as 86710814089 + 856557289 = 294467^2 + 29267^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 87567371378.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38473103 + ... + 38475378.

Almost surely, 2^87567371378 is an apocalyptic number.

87567371378 is a deficient number, since it is larger than the sum of its proper divisors (44014532842).

87567371378 is a wasteful number, since it uses less digits than its factorization.

87567371378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76949052.

The product of its digits is 41489280, while the sum is 62.

The spelling of 87567371378 in words is "eighty-seven billion, five hundred sixty-seven million, three hundred seventy-one thousand, three hundred seventy-eight".