137009068078 has 4 divisors (see below), whose sum is σ = 205513602120. Its totient is φ = 68504534038.

The previous prime is 137009068073. The next prime is 137009068093. The reversal of 137009068078 is 870860900731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 870860900731 = 19 ⋅45834784249.

It is a super-2 number, since 2×137009068078² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) 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 not an unprimeable number, because it can be changed into a prime (137009068073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34252267018 + ... + 34252267021.

It is an arithmetic number, because the mean of its divisors is an integer number (51378400530).

Almost surely, 2^137009068078 is an apocalyptic number.

137009068078 is a deficient number, since it is larger than the sum of its proper divisors (68504534042).

137009068078 is an equidigital number, since it uses as much as digits as its factorization.

137009068078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68504534041.

The product of its (nonzero) digits is 508032, while the sum is 49.

The spelling of 137009068078 in words is "one hundred thirty-seven billion, nine million, sixty-eight thousand, seventy-eight".