138035245578642 has 24 divisors (see below), whose sum is σ = 299790151511760. Its totient is φ = 45901935281400.

The previous prime is 138035245578641. The next prime is 138035245578647. The reversal of 138035245578642 is 246875542530831.

138035245578642 is a `hidden beast` number, since 1 + 3 + 8 + 0 + 3 + 52 + 4 + 5 + 578 + 6 + 4 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 138035245578642.

It is not an unprimeable number, because it can be changed into a prime (138035245578641) 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, 9151095984 + ... + 9151111067.

It is an arithmetic number, because the mean of its divisors is an integer number (12491256312990).

Almost surely, 2^{138035245578642} is an apocalyptic number.

138035245578642 is an abundant number, since it is smaller than the sum of its proper divisors (161754905933118).

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

138035245578642 is a wasteful number, since it uses less digits than its factorization.

138035245578642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18302207478 (or 18302207475 counting only the distinct ones).

The product of its (nonzero) digits is 193536000, while the sum is 63.

The spelling of 138035245578642 in words is "one hundred thirty-eight trillion, thirty-five billion, two hundred forty-five million, five hundred seventy-eight thousand, six hundred forty-two".