87741199917 has 48 divisors (see below), whose sum is σ = 157783697280. Its totient is φ = 47957906304.

The previous prime is 87741199907. The next prime is 87741199937. The reversal of 87741199917 is 71999114778.

It is not a de Polignac number, because 87741199917 - 2¹⁶ = 87741134381 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87741199907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1411308 + ... + 1472165.

It is an arithmetic number, because the mean of its divisors is an integer number (3287160360).

Almost surely, 2^87741199917 is an apocalyptic number.

It is an amenable number.

87741199917 is a deficient number, since it is larger than the sum of its proper divisors (70042497363).

87741199917 is a wasteful number, since it uses less digits than its factorization.

87741199917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883519 (or 2883506 counting only the distinct ones).

The product of its digits is 8001504, while the sum is 63.

The spelling of 87741199917 in words is "eighty-seven billion, seven hundred forty-one million, one hundred ninety-nine thousand, nine hundred seventeen".