424378786525 has 24 divisors (see below), whose sum is σ = 545318740224. Its totient is φ = 327272755200.

The previous prime is 424378786523. The next prime is 424378786529. The reversal of 424378786525 is 525687873424.

It is not a de Polignac number, because 424378786525 - 2¹ = 424378786523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424378786523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 866167 + ... + 1264516.

It is an arithmetic number, because the mean of its divisors is an integer number (22721614176).

Almost surely, 2^424378786525 is an apocalyptic number.

It is an amenable number.

424378786525 is a deficient number, since it is larger than the sum of its proper divisors (120939953699).

424378786525 is a wasteful number, since it uses less digits than its factorization.

424378786525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130981 (or 2130976 counting only the distinct ones).

The product of its digits is 90316800, while the sum is 61.

The spelling of 424378786525 in words is "four hundred twenty-four billion, three hundred seventy-eight million, seven hundred eighty-six thousand, five hundred twenty-five".