30474171639 has 24 divisors (see below), whose sum is σ = 45128992272. Its totient is φ = 19804279680.

The previous prime is 30474171619. The next prime is 30474171653. The reversal of 30474171639 is 93617147403.

30474171639 is a `hidden beast` number, since 3 + 0 + 4 + 7 + 4 + 1 + 7 + 1 + 639 = 666.

It is not a de Polignac number, because 30474171639 - 2¹² = 30474167543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30474171594 and 30474171603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30474171619) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 423072 + ... + 489834.

It is an arithmetic number, because the mean of its divisors is an integer number (1880374678).

Almost surely, 2^30474171639 is an apocalyptic number.

30474171639 is a deficient number, since it is larger than the sum of its proper divisors (14654820633).

30474171639 is a wasteful number, since it uses less digits than its factorization.

30474171639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68047 (or 68044 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 30474171639 in words is "thirty billion, four hundred seventy-four million, one hundred seventy-one thousand, six hundred thirty-nine".