140671656727 has 4 divisors (see below), whose sum is σ = 160767607696. Its totient is φ = 120575705760.

The previous prime is 140671656691. The next prime is 140671656761. The reversal of 140671656727 is 727656176041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 727656176041 = 17 ⋅42803304473.

It is a cyclic number.

It is not a de Polignac number, because 140671656727 - 2²⁷ = 140537438999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140672656727) 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, 10047975474 + ... + 10047975487.

It is an arithmetic number, because the mean of its divisors is an integer number (40191901924).

Almost surely, 2^140671656727 is an apocalyptic number.

140671656727 is a deficient number, since it is larger than the sum of its proper divisors (20095950969).

140671656727 is an equidigital number, since it uses as much as digits as its factorization.

140671656727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20095950968.

The product of its (nonzero) digits is 2963520, while the sum is 52.

The spelling of 140671656727 in words is "one hundred forty billion, six hundred seventy-one million, six hundred fifty-six thousand, seven hundred twenty-seven".