30746172192 has 48 divisors (see below), whose sum is σ = 80721601632. Its totient is φ = 10247086080.

The previous prime is 30746172161. The next prime is 30746172263. The reversal of 30746172192 is 29127164703.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×30746172192² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 678567 + ... + 722457.

It is an arithmetic number, because the mean of its divisors is an integer number (1681700034).

Almost surely, 2^30746172192 is an apocalyptic number.

30746172192 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30746172192 is an abundant number, since it is smaller than the sum of its proper divisors (49975429440).

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

30746172192 is a wasteful number, since it uses less digits than its factorization.

30746172192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51201 (or 51193 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The spelling of 30746172192 in words is "thirty billion, seven hundred forty-six million, one hundred seventy-two thousand, one hundred ninety-two".