425557868578 has 8 divisors (see below), whose sum is σ = 638342784720. Its totient is φ = 212776940340.

The previous prime is 425557868573. The next prime is 425557868579. The reversal of 425557868578 is 875868755524.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (425557868573) 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, 714148 + ... + 1166671.

It is an arithmetic number, because the mean of its divisors is an integer number (79792848090).

Almost surely, 2^425557868578 is an apocalyptic number.

425557868578 is a deficient number, since it is larger than the sum of its proper divisors (212784916142).

425557868578 is a wasteful number, since it uses less digits than its factorization.

425557868578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993952.

The product of its digits is 752640000, while the sum is 70.

The spelling of 425557868578 in words is "four hundred twenty-five billion, five hundred fifty-seven million, eight hundred sixty-eight thousand, five hundred seventy-eight".