88378814785 has 4 divisors (see below), whose sum is σ = 106054577748. Its totient is φ = 70703051824.

The previous prime is 88378814747. The next prime is 88378814789. The reversal of 88378814785 is 58741887388.

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 49472435776 + 38906379009 = 222424^2 + 197247^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88378814785 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88378814785.

It is not an unprimeable number, because it can be changed into a prime (88378814789) 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, 8837881474 + ... + 8837881483.

It is an arithmetic number, because the mean of its divisors is an integer number (26513644437).

Almost surely, 2^88378814785 is an apocalyptic number.

It is an amenable number.

88378814785 is a deficient number, since it is larger than the sum of its proper divisors (17675762963).

88378814785 is a wasteful number, since it uses less digits than its factorization.

88378814785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17675762962.

The product of its digits is 96337920, while the sum is 67.

The spelling of 88378814785 in words is "eighty-eight billion, three hundred seventy-eight million, eight hundred fourteen thousand, seven hundred eighty-five".