3865266749950 has 96 divisors (see below), whose sum is σ = 7710976465920. Its totient is φ = 1436387827200.

The previous prime is 3865266749941. The next prime is 3865266749951. The reversal of 3865266749950 is 599476625683.

It is a self number, because there is not a number n which added to its sum of digits gives 3865266749950.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3865266749951) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27157071 + ... + 27299029.

It is an arithmetic number, because the mean of its divisors is an integer number (80322671520).

Almost surely, 2^{3865266749950} is an apocalyptic number.

3865266749950 is a deficient number, since it is larger than the sum of its proper divisors (3845709715970).

3865266749950 is a wasteful number, since it uses less digits than its factorization.

3865266749950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142402 (or 142397 counting only the distinct ones).

The product of its (nonzero) digits is 587865600, while the sum is 70.

The spelling of 3865266749950 in words is "three trillion, eight hundred sixty-five billion, two hundred sixty-six million, seven hundred forty-nine thousand, nine hundred fifty".