87172838151 has 16 divisors (see below), whose sum is σ = 132853179648. Its totient is φ = 49806158400.

The previous prime is 87172838149. The next prime is 87172838257. The reversal of 87172838151 is 15183827178.

It is a happy number.

It is not a de Polignac number, because 87172838151 - 2¹ = 87172838149 is a prime.

It is a super-2 number, since 2×87172838151² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87172838094 and 87172838103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87172838351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129765 + ... + 437246.

It is an arithmetic number, because the mean of its divisors is an integer number (8303323728).

Almost surely, 2^87172838151 is an apocalyptic number.

87172838151 is a deficient number, since it is larger than the sum of its proper divisors (45680341497).

87172838151 is a wasteful number, since it uses less digits than its factorization.

87172838151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574342.

The product of its digits is 752640, while the sum is 51.

The spelling of 87172838151 in words is "eighty-seven billion, one hundred seventy-two million, eight hundred thirty-eight thousand, one hundred fifty-one".