138274477570151 has 4 divisors (see below), whose sum is σ = 148910975844792. Its totient is φ = 127637979295512.

The previous prime is 138274477570147. The next prime is 138274477570189. The reversal of 138274477570151 is 151075774472831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 138274477570151 - 2² = 138274477570147 is a prime.

It is a super-2 number, since 2×138274477570151² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138274477570111) 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, 5318249137301 + ... + 5318249137326.

It is an arithmetic number, because the mean of its divisors is an integer number (37227743961198).

Almost surely, 2^{138274477570151} is an apocalyptic number.

138274477570151 is a deficient number, since it is larger than the sum of its proper divisors (10636498274641).

138274477570151 is a wasteful number, since it uses less digits than its factorization.

138274477570151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10636498274640.

The product of its (nonzero) digits is 46099200, while the sum is 62.

The spelling of 138274477570151 in words is "one hundred thirty-eight trillion, two hundred seventy-four billion, four hundred seventy-seven million, five hundred seventy thousand, one hundred fifty-one".