3781951333952 has 56 divisors (see below), whose sum is σ = 8617963297440. Its totient is φ = 1628591477760.

The previous prime is 3781951333943. The next prime is 3781951333969. The reversal of 3781951333952 is 2593331591873.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3781951333891 and 3781951333900.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141357413 + ... + 141384164.

It is an arithmetic number, because the mean of its divisors is an integer number (153892201740).

Almost surely, 2^{3781951333952} is an apocalyptic number.

3781951333952 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3781951333952 is an abundant number, since it is smaller than the sum of its proper divisors (4836011963488).

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

3781951333952 is a wasteful number, since it uses less digits than its factorization.

3781951333952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282741619 (or 282741609 counting only the distinct ones).

The product of its digits is 18370800, while the sum is 59.

The spelling of 3781951333952 in words is "three trillion, seven hundred eighty-one billion, nine hundred fifty-one million, three hundred thirty-three thousand, nine hundred fifty-two".