30186851842 has 32 divisors (see below), whose sum is σ = 52035903360. Its totient is φ = 12865632000.

The previous prime is 30186851831. The next prime is 30186851861. The reversal of 30186851842 is 24815868103.

It is a super-2 number, since 2×30186851842² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30186851792 and 30186851801.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2372634 + ... + 2385322.

It is an arithmetic number, because the mean of its divisors is an integer number (1626121980).

Almost surely, 2^30186851842 is an apocalyptic number.

30186851842 is a deficient number, since it is larger than the sum of its proper divisors (21849051518).

30186851842 is a wasteful number, since it uses less digits than its factorization.

30186851842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13626.

The product of its (nonzero) digits is 368640, while the sum is 46.

The spelling of 30186851842 in words is "thirty billion, one hundred eighty-six million, eight hundred fifty-one thousand, eight hundred forty-two".