625143421042 has 64 divisors (see below), whose sum is σ = 1154842444800. Its totient is φ = 247801135680.

The previous prime is 625143421031. The next prime is 625143421057. The reversal of 625143421042 is 240124341526.

It is a junction number, because it is equal to n+sod(n) for n = 625143420989 and 625143421007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27565684 + ... + 27588352.

It is an arithmetic number, because the mean of its divisors is an integer number (18044413200).

Almost surely, 2^625143421042 is an apocalyptic number.

625143421042 is a deficient number, since it is larger than the sum of its proper divisors (529699023758).

625143421042 is a wasteful number, since it uses less digits than its factorization.

625143421042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25151.

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 625143421042 its reverse (240124341526), we get a palindrome (865267762568).

The spelling of 625143421042 in words is "six hundred twenty-five billion, one hundred forty-three million, four hundred twenty-one thousand, forty-two".