3865393081160 has 32 divisors (see below), whose sum is σ = 9366144774840. Its totient is φ = 1427222060544.

The previous prime is 3865393081133. The next prime is 3865393081177. The reversal of 3865393081160 is 611803935683.

It can be written as a sum of positive squares in 4 ways, for example, as 3274311964036 + 591081117124 = 1809506^2 + 768818^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3716723597 + ... + 3716724636.

Almost surely, 2^{3865393081160} is an apocalyptic number.

It is an amenable number.

3865393081160 is an abundant number, since it is smaller than the sum of its proper divisors (5500751693680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3865393081160 is a wasteful number, since it uses less digits than its factorization.

3865393081160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7433448257 (or 7433448253 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 3865393081160 in words is "three trillion, eight hundred sixty-five billion, three hundred ninety-three million, eighty-one thousand, one hundred sixty".