38194768630672 has 20 divisors (see below), whose sum is σ = 74007448300636. Its totient is φ = 19096072295040.

The previous prime is 38194768630651. The next prime is 38194768630673. The reversal of 38194768630672 is 27603686749183.

It can be written as a sum of positive squares in 2 ways, for example, as 2624088969216 + 35570679661456 = 1619904^2 + 5964116^2 .

It is not an unprimeable number, because it can be changed into a prime (38194768630673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81761079 + ... + 82226902.

Almost surely, 2^{38194768630672} is an apocalyptic number.

It is an amenable number.

38194768630672 is a deficient number, since it is larger than the sum of its proper divisors (35812679669964).

38194768630672 is a wasteful number, since it uses less digits than its factorization.

38194768630672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164002546 (or 164002540 counting only the distinct ones).

The product of its (nonzero) digits is 438939648, while the sum is 70.

The spelling of 38194768630672 in words is "thirty-eight trillion, one hundred ninety-four billion, seven hundred sixty-eight million, six hundred thirty thousand, six hundred seventy-two".