429187757172 has 12 divisors (see below), whose sum is σ = 1001438100096. Its totient is φ = 143062585720.

The previous prime is 429187757171. The next prime is 429187757177. The reversal of 429187757172 is 271757781924.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (429187757171) 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, 17882823204 + ... + 17882823227.

It is an arithmetic number, because the mean of its divisors is an integer number (83453175008).

Almost surely, 2^429187757172 is an apocalyptic number.

It is an amenable number.

429187757172 is an abundant number, since it is smaller than the sum of its proper divisors (572250342924).

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

429187757172 is a wasteful number, since it uses less digits than its factorization.

429187757172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35765646438 (or 35765646436 counting only the distinct ones).

The product of its digits is 13829760, while the sum is 60.

The spelling of 429187757172 in words is "four hundred twenty-nine billion, one hundred eighty-seven million, seven hundred fifty-seven thousand, one hundred seventy-two".