87187019253 has 8 divisors (see below), whose sum is σ = 122367746400. Its totient is φ = 55065485808.

The previous prime is 87187019243. The next prime is 87187019263. The reversal of 87187019253 is 35291078178.

It is an interprime number because it is at equal distance from previous prime (87187019243) and next prime (87187019263).

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

It is not a de Polignac number, because 87187019253 - 2⁶ = 87187019189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87187019196 and 87187019205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87187019243) 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 in 7 ways as a sum of consecutive naturals, for example, 764798358 + ... + 764798471.

It is an arithmetic number, because the mean of its divisors is an integer number (15295968300).

Almost surely, 2^87187019253 is an apocalyptic number.

It is an amenable number.

87187019253 is a deficient number, since it is larger than the sum of its proper divisors (35180727147).

87187019253 is a wasteful number, since it uses less digits than its factorization.

87187019253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529596851.

The product of its (nonzero) digits is 846720, while the sum is 51.

The spelling of 87187019253 in words is "eighty-seven billion, one hundred eighty-seven million, nineteen thousand, two hundred fifty-three".