88086620709 has 36 divisors (see below), whose sum is σ = 130377596076. Its totient is φ = 57308743296.

The previous prime is 88086620707. The next prime is 88086620731. The reversal of 88086620709 is 90702668088.

88086620709 is a `hidden beast` number, since 8 + 8 + 0 + 8 + 6 + 620 + 7 + 0 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20319077025 + 67767543684 = 142545^2 + 260322^2 .

It is not a de Polignac number, because 88086620709 - 2¹ = 88086620707 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88086620707) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 35560579 + ... + 35563055.

It is an arithmetic number, because the mean of its divisors is an integer number (3621599891).

Almost surely, 2^88086620709 is an apocalyptic number.

It is an amenable number.

88086620709 is a deficient number, since it is larger than the sum of its proper divisors (42290975367).

88086620709 is a wasteful number, since it uses less digits than its factorization.

88086620709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4706 (or 4660 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 88086620709 in words is "eighty-eight billion, eighty-six million, six hundred twenty thousand, seven hundred nine".