88721141977 has 4 divisors (see below), whose sum is σ = 95545845220. Its totient is φ = 81896438736.

The previous prime is 88721141969. The next prime is 88721141981. The reversal of 88721141977 is 77914112788.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 51720311241 + 37000830736 = 227421^2 + 192356^2 .

It is a cyclic number.

It is not a de Polignac number, because 88721141977 - 2³ = 88721141969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88721141987) 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, 3412351602 + ... + 3412351627.

It is an arithmetic number, because the mean of its divisors is an integer number (23886461305).

Almost surely, 2^88721141977 is an apocalyptic number.

It is an amenable number.

88721141977 is a deficient number, since it is larger than the sum of its proper divisors (6824703243).

88721141977 is a wasteful number, since it uses less digits than its factorization.

88721141977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6824703242.

The product of its digits is 1580544, while the sum is 55.

The spelling of 88721141977 in words is "eighty-eight billion, seven hundred twenty-one million, one hundred forty-one thousand, nine hundred seventy-seven".