137421637107574 has 4 divisors (see below), whose sum is σ = 206132455661364. Its totient is φ = 68710818553786.

The previous prime is 137421637107571. The next prime is 137421637107583. The reversal of 137421637107574 is 475701736124731.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137421637107571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34355409276892 + ... + 34355409276895.

It is an arithmetic number, because the mean of its divisors is an integer number (51533113915341).

Almost surely, 2^{137421637107574} is an apocalyptic number.

137421637107574 is a deficient number, since it is larger than the sum of its proper divisors (68710818553790).

137421637107574 is an equidigital number, since it uses as much as digits as its factorization.

137421637107574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68710818553789.

The product of its (nonzero) digits is 20744640, while the sum is 58.

The spelling of 137421637107574 in words is "one hundred thirty-seven trillion, four hundred twenty-one billion, six hundred thirty-seven million, one hundred seven thousand, five hundred seventy-four".