87381500045 has 32 divisors (see below), whose sum is σ = 120283957248. Its totient is φ = 59695792128.

The previous prime is 87381500039. The next prime is 87381500047. The reversal of 87381500045 is 54000518378.

It is a de Polignac number, because none of the positive numbers 2^k-87381500045 is a prime.

It is a super-2 number, since 2×87381500045² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 87381499975 and 87381500011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87381500047) 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 31 ways as a sum of consecutive naturals, for example, 25274957 + ... + 25278413.

It is an arithmetic number, because the mean of its divisors is an integer number (3758873664).

Almost surely, 2^87381500045 is an apocalyptic number.

It is an amenable number.

87381500045 is a deficient number, since it is larger than the sum of its proper divisors (32902457203).

87381500045 is a wasteful number, since it uses less digits than its factorization.

87381500045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5949.

The product of its (nonzero) digits is 134400, while the sum is 41.

The spelling of 87381500045 in words is "eighty-seven billion, three hundred eighty-one million, five hundred thousand, forty-five".