3857166377088 has 128 divisors (see below), whose sum is σ = 10493009671680. Its totient is φ = 1254925860864.

The previous prime is 3857166377081. The next prime is 3857166377107. The reversal of 3857166377088 is 8807736617583.

It is a Cunningham number, because it is equal to 1963967²-1.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×3857166377088² (a number of 26 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 3436945 + ... + 4418927.

It is an arithmetic number, because the mean of its divisors is an integer number (81976638060).

Almost surely, 2^{3857166377088} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3857166377088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5246504835840).

3857166377088 is an abundant number, since it is smaller than the sum of its proper divisors (6635843294592).

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

3857166377088 is a wasteful number, since it uses less digits than its factorization.

3857166377088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982246 (or 982234 counting only the distinct ones).

The product of its (nonzero) digits is 284497920, while the sum is 69.

The spelling of 3857166377088 in words is "three trillion, eight hundred fifty-seven billion, one hundred sixty-six million, three hundred seventy-seven thousand, eighty-eight".