137766681434 has 8 divisors (see below), whose sum is σ = 206656476768. Its totient is φ = 68881189180.

The previous prime is 137766681431. The next prime is 137766681457. The reversal of 137766681434 is 434186667731.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 137766681434.

It is not an unprimeable number, because it can be changed into a prime (137766681431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 994502 + ... + 1124529.

It is an arithmetic number, because the mean of its divisors is an integer number (25832059596).

Almost surely, 2^137766681434 is an apocalyptic number.

137766681434 is a deficient number, since it is larger than the sum of its proper divisors (68889795334).

137766681434 is a wasteful number, since it uses less digits than its factorization.

137766681434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151540.

The product of its digits is 12192768, while the sum is 56.

The spelling of 137766681434 in words is "one hundred thirty-seven billion, seven hundred sixty-six million, six hundred eighty-one thousand, four hundred thirty-four".