137438953477 has 8 divisors (see below), whose sum is σ = 160904140992. Its totient is φ = 114931528800.

The previous prime is 137438953447. The next prime is 137438953481. The reversal of 137438953477 is 774359834731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 137438953477 - 2⁷ = 137438953349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137438953427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239440399 + ... + 239440972.

It is an arithmetic number, because the mean of its divisors is an integer number (20113017624).

Almost surely, 2^137438953477 is an apocalyptic number.

It is an amenable number.

137438953477 is a deficient number, since it is larger than the sum of its proper divisors (23465187515).

137438953477 is an equidigital number, since it uses as much as digits as its factorization.

137438953477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478881419.

The product of its digits is 53343360, while the sum is 61.

The spelling of 137438953477 in words is "one hundred thirty-seven billion, four hundred thirty-eight million, nine hundred fifty-three thousand, four hundred seventy-seven".