88287427191 has 4 divisors (see below), whose sum is σ = 117716569592. Its totient is φ = 58858284792.

The previous prime is 88287427171. The next prime is 88287427229. The reversal of 88287427191 is 19172478288.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 88287427191 - 2⁶ = 88287427127 is a prime.

It is a super-2 number, since 2×88287427191² (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 (88287427141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14714571196 + ... + 14714571201.

It is an arithmetic number, because the mean of its divisors is an integer number (29429142398).

Almost surely, 2^88287427191 is an apocalyptic number.

88287427191 is a deficient number, since it is larger than the sum of its proper divisors (29429142401).

88287427191 is a wasteful number, since it uses less digits than its factorization.

88287427191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29429142400.

The product of its digits is 3612672, while the sum is 57.

The spelling of 88287427191 in words is "eighty-eight billion, two hundred eighty-seven million, four hundred twenty-seven thousand, one hundred ninety-one".