137638750026 has 32 divisors (see below), whose sum is σ = 286215431040. Its totient is φ = 44072657216.

The previous prime is 137638750013. The next prime is 137638750043. The reversal of 137638750026 is 620057836731.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1973406 + ... + 2041961.

It is an arithmetic number, because the mean of its divisors is an integer number (8944232220).

Almost surely, 2^137638750026 is an apocalyptic number.

137638750026 is an abundant number, since it is smaller than the sum of its proper divisors (148576681014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137638750026 is a wasteful number, since it uses less digits than its factorization.

137638750026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015598.

The product of its (nonzero) digits is 1270080, while the sum is 48.

The spelling of 137638750026 in words is "one hundred thirty-seven billion, six hundred thirty-eight million, seven hundred fifty thousand, twenty-six".