88011772968681 has 27 divisors (see below), whose sum is σ = 134172040662621. Its totient is φ = 55586045195064.

The previous prime is 88011772968673. The next prime is 88011772968683. The reversal of 88011772968681 is 18686927711088.

The square root of 88011772968681 is 9381459.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 88011772968681 - 2³ = 88011772968673 is a prime.

It is a super-2 number, since 2×88011772968681² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (88011772968683) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 534660870 + ... + 534825456.

Almost surely, 2^{88011772968681} is an apocalyptic number.

88011772968681 is the 9381459-th square number.

88011772968681 is the 4690730-th centered octagonal number.

It is an amenable number.

88011772968681 is a deficient number, since it is larger than the sum of its proper divisors (46160267693940).

88011772968681 is an frugal number, since it uses more digits than its factorization.

88011772968681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329218 (or 164609 counting only the distinct ones).

The product of its (nonzero) digits is 130056192, while the sum is 72.

The spelling of 88011772968681 in words is "eighty-eight trillion, eleven billion, seven hundred seventy-two million, nine hundred sixty-eight thousand, six hundred eighty-one".