3856165950 has 288 divisors, whose sum is σ = 12234074112. Its totient is φ = 786240000.

The previous prime is 3856165889. The next prime is 3856165969. The reversal of 3856165950 is 595616583.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3856165950.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 5500600 + ... + 5501300.

It is an arithmetic number, because the mean of its divisors is an integer number (42479424).

Almost surely, 2^3856165950 is an apocalyptic number.

3856165950 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3856165950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6117037056).

3856165950 is an abundant number, since it is smaller than the sum of its proper divisors (8377908162).

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

3856165950 is a wasteful number, since it uses less digits than its factorization.

3856165950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780 (or 762 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 48.

The square root of 3856165950 is about 62098.0349930656. The cubic root of 3856165950 is about 1568.1414644750.

The spelling of 3856165950 in words is "three billion, eight hundred fifty-six million, one hundred sixty-five thousand, nine hundred fifty".