25435712642346 has 16 divisors (see below), whose sum is σ = 56523805872000. Its totient is φ = 8478570880764.

The previous prime is 25435712642243. The next prime is 25435712642371. The reversal of 25435712642346 is 64324621753452.

25435712642346 is a `hidden beast` number, since 2 + 5 + 4 + 3 + 57 + 126 + 423 + 46 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 471031715599 = 25435712642346 / (2 + 5 + 4 + 3 + 5 + 7 + 1 + 2 + 6 + 4 + 2 + 3 + 4 + 6).

It is a junction number, because it is equal to n+sod(n) for n = 25435712642292 and 25435712642301.

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, 235515857746 + ... + 235515857853.

It is an arithmetic number, because the mean of its divisors is an integer number (3532737867000).

Almost surely, 2^{25435712642346} is an apocalyptic number.

25435712642346 is an abundant number, since it is smaller than the sum of its proper divisors (31088093229654).

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

25435712642346 is a wasteful number, since it uses less digits than its factorization.

25435712642346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471031715610 (or 471031715604 counting only the distinct ones).

The product of its digits is 29030400, while the sum is 54.

The spelling of 25435712642346 in words is "twenty-five trillion, four hundred thirty-five billion, seven hundred twelve million, six hundred forty-two thousand, three hundred forty-six".