30489163761 has 32 divisors (see below), whose sum is σ = 47732888320. Its totient is φ = 16945272576.

The previous prime is 30489163753. The next prime is 30489163769. The reversal of 30489163761 is 16736198403.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30489163753) and next prime (30489163769).

It is not a de Polignac number, because 30489163761 - 2³ = 30489163753 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30489163761.

It is not an unprimeable number, because it can be changed into a prime (30489163769) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2820555 + ... + 2831343.

It is an arithmetic number, because the mean of its divisors is an integer number (1491652760).

Almost surely, 2^30489163761 is an apocalyptic number.

It is an amenable number.

30489163761 is a deficient number, since it is larger than the sum of its proper divisors (17243724559).

30489163761 is a wasteful number, since it uses less digits than its factorization.

30489163761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14473.

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 30489163761 in words is "thirty billion, four hundred eighty-nine million, one hundred sixty-three thousand, seven hundred sixty-one".