137438954043 has 4 divisors (see below), whose sum is σ = 183251938728. Its totient is φ = 91625969360.

The previous prime is 137438954041. The next prime is 137438954063. The reversal of 137438954043 is 340459834731.

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 137438954043 - 2¹ = 137438954041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (137438954041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22906492338 + ... + 22906492343.

It is an arithmetic number, because the mean of its divisors is an integer number (45812984682).

Almost surely, 2^137438954043 is an apocalyptic number.

137438954043 is a deficient number, since it is larger than the sum of its proper divisors (45812984685).

137438954043 is an equidigital number, since it uses as much as digits as its factorization.

137438954043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45812984684.

The product of its (nonzero) digits is 4354560, while the sum is 51.

The spelling of 137438954043 in words is "one hundred thirty-seven billion, four hundred thirty-eight million, nine hundred fifty-four thousand, forty-three".