13825403784 has 32 divisors (see below), whose sum is σ = 38403900000. Its totient is φ = 4608467856.

The previous prime is 13825403771. The next prime is 13825403791. The reversal of 13825403784 is 48730452831.

13825403784 is a `hidden beast` number, since 1 + 38 + 2 + 540 + 3 + 78 + 4 = 666.

It is a super-2 number, since 2×13825403784² (a number of 21 digits) contains 22 as substring.

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, 32003034 + ... + 32003465.

It is an arithmetic number, because the mean of its divisors is an integer number (1200121875).

Almost surely, 2^13825403784 is an apocalyptic number.

It is an amenable number.

13825403784 is an abundant number, since it is smaller than the sum of its proper divisors (24578496216).

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

13825403784 is a wasteful number, since it uses less digits than its factorization.

13825403784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64006514 (or 64006504 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 13825403784 in words is "thirteen billion, eight hundred twenty-five million, four hundred three thousand, seven hundred eighty-four".