171421713077 has 16 divisors (see below), whose sum is σ = 188133891840. Its totient is φ = 155548512768.

The previous prime is 171421713061. The next prime is 171421713079. The reversal of 171421713077 is 770317124171.

It is a cyclic number.

It is not a de Polignac number, because 171421713077 - 2⁴ = 171421713061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171421713079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1547552 + ... + 1654617.

It is an arithmetic number, because the mean of its divisors is an integer number (11758368240).

Almost surely, 2^171421713077 is an apocalyptic number.

171421713077 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

171421713077 is a deficient number, since it is larger than the sum of its proper divisors (16712178763).

171421713077 is a wasteful number, since it uses less digits than its factorization.

171421713077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202300.

The product of its (nonzero) digits is 57624, while the sum is 41.

The spelling of 171421713077 in words is "one hundred seventy-one billion, four hundred twenty-one million, seven hundred thirteen thousand, seventy-seven".