3919448972455 has 16 divisors (see below), whose sum is σ = 4740499209600. Its totient is φ = 3110798248480.

The previous prime is 3919448972407. The next prime is 3919448972459. The reversal of 3919448972455 is 5542798449193.

It is not a de Polignac number, because 3919448972455 - 2¹¹ = 3919448970407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3919448972459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1683516 + ... + 3266974.

It is an arithmetic number, because the mean of its divisors is an integer number (296281200600).

Almost surely, 2^{3919448972455} is an apocalyptic number.

3919448972455 is a deficient number, since it is larger than the sum of its proper divisors (821050237145).

3919448972455 is a wasteful number, since it uses less digits than its factorization.

3919448972455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587374.

The product of its digits is 391910400, while the sum is 70.

The spelling of 3919448972455 in words is "three trillion, nine hundred nineteen billion, four hundred forty-eight million, nine hundred seventy-two thousand, four hundred fifty-five".