87803860381 has 16 divisors (see below), whose sum is σ = 93163150080. Its totient is φ = 82583487360.

The previous prime is 87803860379. The next prime is 87803860399. The reversal of 87803860381 is 18306830878.

It is a cyclic number.

It is not a de Polignac number, because 87803860381 - 2¹ = 87803860379 is a prime.

It is a super-2 number, since 2×87803860381² (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 (87803860301) 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 15 ways as a sum of consecutive naturals, for example, 252016 + ... + 488998.

It is an arithmetic number, because the mean of its divisors is an integer number (5822696880).

Almost surely, 2^87803860381 is an apocalyptic number.

It is an amenable number.

87803860381 is a deficient number, since it is larger than the sum of its proper divisors (5359289699).

87803860381 is a wasteful number, since it uses less digits than its factorization.

87803860381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237276.

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 87803860381 in words is "eighty-seven billion, eight hundred three million, eight hundred sixty thousand, three hundred eighty-one".