171422376420 has 48 divisors (see below), whose sum is σ = 480154485888. Its totient is φ = 45696268800.

The previous prime is 171422376409. The next prime is 171422376431. The reversal of 171422376420 is 24673224171.

It is an interprime number because it is at equal distance from previous prime (171422376409) and next prime (171422376431).

It is a super-2 number, since 2×171422376420² (a number of 23 digits) contains 22 as substring.

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, 341944 + ... + 678063.

It is an arithmetic number, because the mean of its divisors is an integer number (10003218456).

Almost surely, 2^171422376420 is an apocalyptic number.

171422376420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

171422376420 is an abundant number, since it is smaller than the sum of its proper divisors (308732109468).

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

171422376420 is a wasteful number, since it uses less digits than its factorization.

171422376420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022820 (or 1022818 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 171422376420 in words is "one hundred seventy-one billion, four hundred twenty-two million, three hundred seventy-six thousand, four hundred twenty".