30390155643 has 16 divisors (see below), whose sum is σ = 40596309536. Its totient is φ = 20222092800.

The previous prime is 30390155633. The next prime is 30390155707. The reversal of 30390155643 is 34655109303.

It is not a de Polignac number, because 30390155643 - 2¹⁴ = 30390139259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30390155623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3934221 + ... + 3941937.

It is an arithmetic number, because the mean of its divisors is an integer number (2537269346).

Almost surely, 2^30390155643 is an apocalyptic number.

30390155643 is a deficient number, since it is larger than the sum of its proper divisors (10206153893).

30390155643 is a wasteful number, since it uses less digits than its factorization.

30390155643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10014.

The product of its (nonzero) digits is 145800, while the sum is 39.

The spelling of 30390155643 in words is "thirty billion, three hundred ninety million, one hundred fifty-five thousand, six hundred forty-three".