30172040712 has 96 divisors (see below), whose sum is σ = 91319024160. Its totient is φ = 8920032000.

The previous prime is 30172040693. The next prime is 30172040719. The reversal of 30172040712 is 21704027103.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30172040719) 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, 432114 + ... + 497057.

It is an arithmetic number, because the mean of its divisors is an integer number (951239835).

Almost surely, 2^30172040712 is an apocalyptic number.

It is an amenable number.

30172040712 is an abundant number, since it is smaller than the sum of its proper divisors (61146983448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30172040712 is a wasteful number, since it uses less digits than its factorization.

30172040712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929235 (or 929228 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

Adding to 30172040712 its reverse (21704027103), we get a palindrome (51876067815).

The spelling of 30172040712 in words is "thirty billion, one hundred seventy-two million, forty thousand, seven hundred twelve".