3953081809140 has 24 divisors (see below), whose sum is σ = 11068629065760. Its totient is φ = 1054155149088.

The previous prime is 3953081809111. The next prime is 3953081809141. The reversal of 3953081809140 is 419081803593.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3953081809141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32942348350 + ... + 32942348469.

It is an arithmetic number, because the mean of its divisors is an integer number (461192877740).

Almost surely, 2^{3953081809140} is an apocalyptic number.

3953081809140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3953081809140 is an abundant number, since it is smaller than the sum of its proper divisors (7115547256620).

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

3953081809140 is a wasteful number, since it uses less digits than its factorization.

3953081809140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65884696831 (or 65884696829 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 51.

The spelling of 3953081809140 in words is "three trillion, nine hundred fifty-three billion, eighty-one million, eight hundred nine thousand, one hundred forty".