87192849893 has 8 divisors (see below), whose sum is σ = 89057498112. Its totient is φ = 85328596816.

The previous prime is 87192849881. The next prime is 87192849899. The reversal of 87192849893 is 39894829178.

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

It is a cyclic number.

It is not a de Polignac number, because 87192849893 - 2¹⁸ = 87192587749 is a prime.

It is a super-2 number, since 2×87192849893² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87192849899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370871 + ... + 558507.

It is an arithmetic number, because the mean of its divisors is an integer number (11132187264).

Almost surely, 2^87192849893 is an apocalyptic number.

It is an amenable number.

87192849893 is a deficient number, since it is larger than the sum of its proper divisors (1864648219).

87192849893 is a wasteful number, since it uses less digits than its factorization.

87192849893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197571.

The product of its digits is 62705664, while the sum is 68.

The spelling of 87192849893 in words is "eighty-seven billion, one hundred ninety-two million, eight hundred forty-nine thousand, eight hundred ninety-three".