137048578438 has 4 divisors (see below), whose sum is σ = 205572867660. Its totient is φ = 68524289218.

The previous prime is 137048578417. The next prime is 137048578483. The reversal of 137048578438 is 834875840731.

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

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34262144608 + ... + 34262144611.

It is an arithmetic number, because the mean of its divisors is an integer number (51393216915).

Almost surely, 2^137048578438 is an apocalyptic number.

137048578438 is a deficient number, since it is larger than the sum of its proper divisors (68524289222).

137048578438 is an equidigital number, since it uses as much as digits as its factorization.

137048578438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68524289221.

The product of its (nonzero) digits is 18063360, while the sum is 58.

The spelling of 137048578438 in words is "one hundred thirty-seven billion, forty-eight million, five hundred seventy-eight thousand, four hundred thirty-eight".