381770771516 has 12 divisors (see below), whose sum is σ = 668167943520. Its totient is φ = 190865644800.

The previous prime is 381770771497. The next prime is 381770771521. The reversal of 381770771516 is 615177077183.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4891685 + ... + 4969116.

It is an arithmetic number, because the mean of its divisors is an integer number (55680661960).

Almost surely, 2^381770771516 is an apocalyptic number.

It is an amenable number.

381770771516 is a deficient number, since it is larger than the sum of its proper divisors (286397172004).

381770771516 is a wasteful number, since it uses less digits than its factorization.

381770771516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9870484 (or 9870482 counting only the distinct ones).

The product of its (nonzero) digits is 1728720, while the sum is 53.

The spelling of 381770771516 in words is "three hundred eighty-one billion, seven hundred seventy million, seven hundred seventy-one thousand, five hundred sixteen".