88620863855 has 4 divisors (see below), whose sum is σ = 106345036632. Its totient is φ = 70896691080.

The previous prime is 88620863831. The next prime is 88620863861. The reversal of 88620863855 is 55836802688.

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 88620863855 - 2²⁰ = 88619815279 is a prime.

It is a super-2 number, since 2×88620863855² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 88620863794 and 88620863803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8862086381 + ... + 8862086390.

It is an arithmetic number, because the mean of its divisors is an integer number (26586259158).

Almost surely, 2^88620863855 is an apocalyptic number.

88620863855 is a deficient number, since it is larger than the sum of its proper divisors (17724172777).

88620863855 is a wasteful number, since it uses less digits than its factorization.

88620863855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17724172776.

The product of its (nonzero) digits is 22118400, while the sum is 59.

The spelling of 88620863855 in words is "eighty-eight billion, six hundred twenty million, eight hundred sixty-three thousand, eight hundred fifty-five".