88136812642 has 8 divisors (see below), whose sum is σ = 132211201500. Its totient is φ = 44066412144.

The previous prime is 88136812633. The next prime is 88136812649. The reversal of 88136812642 is 24621863188.

It can be written as a sum of positive squares in 2 ways, for example, as 79993374561 + 8143438081 = 282831^2 + 90241^2 .

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

It is a super-2 number, since 2×88136812642² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (88136812649) 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, 941217 + ... + 1030612.

Almost surely, 2^88136812642 is an apocalyptic number.

88136812642 is a deficient number, since it is larger than the sum of its proper divisors (44074388858).

88136812642 is a wasteful number, since it uses less digits than its factorization.

88136812642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994180.

The product of its digits is 884736, while the sum is 49.

The spelling of 88136812642 in words is "eighty-eight billion, one hundred thirty-six million, eight hundred twelve thousand, six hundred forty-two".