74847587987 has 2 divisors, whose sum is σ = 74847587988. Its totient is φ = 74847587986.

The previous prime is 74847587911. The next prime is 74847588001. The reversal of 74847587987 is 78978574847.

It is a strong prime.

It is an emirp because it is prime and its reverse (78978574847) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74847587987 - 2¹² = 74847583891 is a prime.

It is a super-3 number, since 3×74847587987³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (74847587887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37423793993 + 37423793994.

It is an arithmetic number, because the mean of its divisors is an integer number (37423793994).

Almost surely, 2^74847587987 is an apocalyptic number.

74847587987 is a deficient number, since it is larger than the sum of its proper divisors (1).

74847587987 is an equidigital number, since it uses as much as digits as its factorization.

74847587987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 885104640, while the sum is 74.

The spelling of 74847587987 in words is "seventy-four billion, eight hundred forty-seven million, five hundred eighty-seven thousand, nine hundred eighty-seven".