3939749667750 has 256 divisors, whose sum is σ = 10936535710464. Its totient is φ = 938345472000.

The previous prime is 3939749667697. The next prime is 3939749667757. The reversal of 3939749667750 is 577669479393.

It is a Harshad number since it is a multiple of its sum of digits (75).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3939749667757) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 65265582 + ... + 65325918.

It is an arithmetic number, because the mean of its divisors is an integer number (42720842619).

Almost surely, 2^{3939749667750} is an apocalyptic number.

3939749667750 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 3939749667750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5468267855232).

3939749667750 is an abundant number, since it is smaller than the sum of its proper divisors (6996786042714).

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

3939749667750 is a wasteful number, since it uses less digits than its factorization.

3939749667750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60588 (or 60578 counting only the distinct ones).

The product of its (nonzero) digits is 1620304560, while the sum is 75.

The spelling of 3939749667750 in words is "three trillion, nine hundred thirty-nine billion, seven hundred forty-nine million, six hundred sixty-seven thousand, seven hundred fifty".