30426721006172 has 12 divisors (see below), whose sum is σ = 54545463267456. Its totient is φ = 14842302929760.

The previous prime is 30426721006139. The next prime is 30426721006181. The reversal of 30426721006172 is 27160012762403.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92764393148 + ... + 92764393475.

It is an arithmetic number, because the mean of its divisors is an integer number (4545455272288).

Almost surely, 2^{30426721006172} is an apocalyptic number.

It is an amenable number.

30426721006172 is a deficient number, since it is larger than the sum of its proper divisors (24118742261284).

30426721006172 is a wasteful number, since it uses less digits than its factorization.

30426721006172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185528786668 (or 185528786666 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 41.

Adding to 30426721006172 its reverse (27160012762403), we get a palindrome (57586733768575).

The spelling of 30426721006172 in words is "thirty trillion, four hundred twenty-six billion, seven hundred twenty-one million, six thousand, one hundred seventy-two".