30851254642 has 16 divisors (see below), whose sum is σ = 49841930880. Its totient is φ = 14237529552.

The previous prime is 30851254619. The next prime is 30851254703. The reversal of 30851254642 is 24645215803.

It is a junction number, because it is equal to n+sod(n) for n = 30851254595 and 30851254604.

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, 208903 + ... + 324565.

It is an arithmetic number, because the mean of its divisors is an integer number (3115120680).

Almost surely, 2^30851254642 is an apocalyptic number.

30851254642 is a deficient number, since it is larger than the sum of its proper divisors (18990676238).

30851254642 is a wasteful number, since it uses less digits than its factorization.

30851254642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125937.

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 30851254642 in words is "thirty billion, eight hundred fifty-one million, two hundred fifty-four thousand, six hundred forty-two".