381702864810215 has 16 divisors (see below), whose sum is σ = 493358773571328. Its totient is φ = 281826470382336.

The previous prime is 381702864810109. The next prime is 381702864810269. The reversal of 381702864810215 is 512018468207183.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 381702864810215 - 2¹⁶ = 381702864744679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483085559 + ... + 483875048.

It is an arithmetic number, because the mean of its divisors is an integer number (30834923348208).

Almost surely, 2^{381702864810215} is an apocalyptic number.

381702864810215 is a deficient number, since it is larger than the sum of its proper divisors (111655908761113).

381702864810215 is a wasteful number, since it uses less digits than its factorization.

381702864810215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966966698.

The product of its (nonzero) digits is 5160960, while the sum is 56.

The spelling of 381702864810215 in words is "three hundred eighty-one trillion, seven hundred two billion, eight hundred sixty-four million, eight hundred ten thousand, two hundred fifteen".