429378646873925 has 24 divisors (see below), whose sum is σ = 614515544654592. Its totient is φ = 291515913000000.

The previous prime is 429378646873901. The next prime is 429378646873993. The reversal of 429378646873925 is 529378646873924.

It is not a de Polignac number, because 429378646873925 - 2⁴⁶ = 359009902696261 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12146478701 + ... + 12146514050.

It is an arithmetic number, because the mean of its divisors is an integer number (25604814360608).

Almost surely, 2^{429378646873925} is an apocalyptic number.

It is an amenable number.

429378646873925 is a deficient number, since it is larger than the sum of its proper divisors (185136897780667).

429378646873925 is a wasteful number, since it uses less digits than its factorization.

429378646873925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24292992869 (or 24292992864 counting only the distinct ones).

The product of its digits is 26336378880, while the sum is 83.

Subtracting 429378646873925 from its reverse (529378646873924), we obtain a palindrome (99999999999999).

The spelling of 429378646873925 in words is "four hundred twenty-nine trillion, three hundred seventy-eight billion, six hundred forty-six million, eight hundred seventy-three thousand, nine hundred twenty-five".