87019481701 has 4 divisors (see below), whose sum is σ = 87126781504. Its totient is φ = 86912181900.

The previous prime is 87019481687. The next prime is 87019481719. The reversal of 87019481701 is 10718491078.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10718491078 = 2 ⋅5359245539.

It is a cyclic number.

It is not a de Polignac number, because 87019481701 - 2⁵ = 87019481669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87019481501) 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 3 ways as a sum of consecutive naturals, for example, 53648685 + ... + 53650306.

It is an arithmetic number, because the mean of its divisors is an integer number (21781695376).

Almost surely, 2^87019481701 is an apocalyptic number.

It is an amenable number.

87019481701 is a deficient number, since it is larger than the sum of its proper divisors (107299803).

87019481701 is a wasteful number, since it uses less digits than its factorization.

87019481701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107299802.

The product of its (nonzero) digits is 112896, while the sum is 46.

The spelling of 87019481701 in words is "eighty-seven billion, nineteen million, four hundred eighty-one thousand, seven hundred one".