30431724477 has 32 divisors (see below), whose sum is σ = 50780252160. Its totient is φ = 15748547520.

The previous prime is 30431724473. The next prime is 30431724539. The reversal of 30431724477 is 77442713403.

It is not a de Polignac number, because 30431724477 - 2² = 30431724473 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30431724473) 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, 189702 + ... + 311207.

It is an arithmetic number, because the mean of its divisors is an integer number (1586882880).

Almost surely, 2^30431724477 is an apocalyptic number.

It is an amenable number.

30431724477 is a deficient number, since it is larger than the sum of its proper divisors (20348527683).

30431724477 is a wasteful number, since it uses less digits than its factorization.

30431724477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501193.

The product of its (nonzero) digits is 395136, while the sum is 42.

The spelling of 30431724477 in words is "thirty billion, four hundred thirty-one million, seven hundred twenty-four thousand, four hundred seventy-seven".