86863775953 has 4 divisors (see below), whose sum is σ = 90640461888. Its totient is φ = 83087090020.

The previous prime is 86863775891. The next prime is 86863775989. The reversal of 86863775953 is 35957736868.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86863775953 - 2¹³ = 86863767761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86863775653) 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, 1888342933 + ... + 1888342978.

It is an arithmetic number, because the mean of its divisors is an integer number (22660115472).

Almost surely, 2^86863775953 is an apocalyptic number.

It is an amenable number.

86863775953 is a deficient number, since it is larger than the sum of its proper divisors (3776685935).

86863775953 is a wasteful number, since it uses less digits than its factorization.

86863775953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3776685934.

The product of its digits is 228614400, while the sum is 67.

The spelling of 86863775953 in words is "eighty-six billion, eight hundred sixty-three million, seven hundred seventy-five thousand, nine hundred fifty-three".