381747425279 has 12 divisors (see below), whose sum is σ = 419632085712. Its totient is φ = 347022096960.

The previous prime is 381747425219. The next prime is 381747425341. The reversal of 381747425279 is 972524747183.

It is a happy number.

It is not a de Polignac number, because 381747425279 - 2¹⁶ = 381747359743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381747425209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2122694 + ... + 2295500.

It is an arithmetic number, because the mean of its divisors is an integer number (34969340476).

Almost surely, 2^381747425279 is an apocalyptic number.

381747425279 is a deficient number, since it is larger than the sum of its proper divisors (37884660433).

381747425279 is a wasteful number, since it uses less digits than its factorization.

381747425279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191086 (or 191075 counting only the distinct ones).

The product of its digits is 23708160, while the sum is 59.

The spelling of 381747425279 in words is "three hundred eighty-one billion, seven hundred forty-seven million, four hundred twenty-five thousand, two hundred seventy-nine".