3781397969323 has 8 divisors (see below), whose sum is σ = 4082430040416. Its totient is φ = 3481816656000.

The previous prime is 3781397969311. The next prime is 3781397969333. The reversal of 3781397969323 is 3239697931873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3781397969323 - 2³³ = 3772808034731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3781397969333) 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, 362684023 + ... + 362694448.

It is an arithmetic number, because the mean of its divisors is an integer number (510303755052).

Almost surely, 2^{3781397969323} is an apocalyptic number.

3781397969323 is a deficient number, since it is larger than the sum of its proper divisors (301032071093).

3781397969323 is a wasteful number, since it uses less digits than its factorization.

3781397969323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725378885.

The product of its digits is 277766496, while the sum is 70.

The spelling of 3781397969323 in words is "three trillion, seven hundred eighty-one billion, three hundred ninety-seven million, nine hundred sixty-nine thousand, three hundred twenty-three".