171426401634 has 16 divisors (see below), whose sum is σ = 342857813760. Its totient is φ = 57141298800.

The previous prime is 171426401623. The next prime is 171426401693. The reversal of 171426401634 is 436104624171.

It is a super-2 number, since 2×171426401634² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 171426401592 and 171426401601.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351784 + ... + 683084.

It is an arithmetic number, because the mean of its divisors is an integer number (21428613360).

Almost surely, 2^171426401634 is an apocalyptic number.

171426401634 is an abundant number, since it is smaller than the sum of its proper divisors (171431412126).

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

171426401634 is a wasteful number, since it uses less digits than its factorization.

171426401634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417545.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 171426401634 in words is "one hundred seventy-one billion, four hundred twenty-six million, four hundred one thousand, six hundred thirty-four".