381225066738 has 64 divisors (see below), whose sum is σ = 800228782080. Its totient is φ = 120917332800.

The previous prime is 381225066713. The next prime is 381225066763. The reversal of 381225066738 is 837660522183.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (381225066713) and next prime (381225066763).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54309793 + ... + 54316811.

It is an arithmetic number, because the mean of its divisors is an integer number (12503574720).

Almost surely, 2^381225066738 is an apocalyptic number.

381225066738 is an abundant number, since it is smaller than the sum of its proper divisors (419003715342).

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

381225066738 is a wasteful number, since it uses less digits than its factorization.

381225066738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11903.

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 381225066738 in words is "three hundred eighty-one billion, two hundred twenty-five million, sixty-six thousand, seven hundred thirty-eight".