3857166377089 has 9 divisors (see below), whose sum is σ = 3994817506563. Its totient is φ = 3724105648872.

The previous prime is 3857166377081. The next prime is 3857166377107. The reversal of 3857166377089 is 9807736617583.

The square root of 3857166377089 is 1963967.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2022604485489 + 1834561891600 = 1422183^2 + 1354460^2 .

It is not a de Polignac number, because 3857166377089 - 2³ = 3857166377081 is a prime.

It is a super-2 number, since 2×3857166377089² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3857166377081) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 56921182 + ... + 56988904.

Almost surely, 2^{3857166377089} is an apocalyptic number.

3857166377089 is the 1963967-th square number.

3857166377089 is the 981984-th centered octagonal number.

It is an amenable number.

3857166377089 is a deficient number, since it is larger than the sum of its proper divisors (137651129474).

3857166377089 is an frugal number, since it uses more digits than its factorization.

3857166377089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135504 (or 67752 counting only the distinct ones).

The product of its (nonzero) digits is 320060160, while the sum is 70.

The spelling of 3857166377089 in words is "three trillion, eight hundred fifty-seven billion, one hundred sixty-six million, three hundred seventy-seven thousand, eighty-nine".