86645780204008 has 16 divisors (see below), whose sum is σ = 163495620291780. Its totient is φ = 43046948126208.

The previous prime is 86645780203991. The next prime is 86645780204023. The reversal of 86645780204008 is 80040208754668.

It can be written as a sum of positive squares in 2 ways, for example, as 83206469010564 + 3439311193444 = 9121758^2 + 1854538^2 .

It is a super-2 number, since 2×86645780204008² (a number of 29 digits) contains 22 as substring.

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, 34492745641 + ... + 34492748152.

Almost surely, 2^{86645780204008} is an apocalyptic number.

It is an amenable number.

86645780204008 is a deficient number, since it is larger than the sum of its proper divisors (76849840087772).

86645780204008 is a wasteful number, since it uses less digits than its factorization.

86645780204008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68985493956 (or 68985493952 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 58.

The spelling of 86645780204008 in words is "eighty-six trillion, six hundred forty-five billion, seven hundred eighty million, two hundred four thousand, eight".