3951905499360 has 864 divisors, whose sum is σ = 17439502010112. Its totient is φ = 806905774080.

The previous prime is 3951905499349. The next prime is 3951905499397. The reversal of 3951905499360 is 639945091593.

3951905499360 is a `hidden beast` number, since 3 + 9 + 51 + 9 + 0 + 549 + 9 + 36 + 0 = 666.

3951905499360 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

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, 28366192 + ... + 28505168.

It is an arithmetic number, because the mean of its divisors is an integer number (20184608808).

Almost surely, 2^{3951905499360} is an apocalyptic number.

3951905499360 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3951905499360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8719751005056).

3951905499360 is an abundant number, since it is smaller than the sum of its proper divisors (13487596510752).

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

3951905499360 is a wasteful number, since it uses less digits than its factorization.

3951905499360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139056 (or 139038 counting only the distinct ones).

The product of its (nonzero) digits is 35429400, while the sum is 63.

The spelling of 3951905499360 in words is "three trillion, nine hundred fifty-one billion, nine hundred five million, four hundred ninety-nine thousand, three hundred sixty".