30726741181 has 8 divisors (see below), whose sum is σ = 30901654784. Its totient is φ = 30551884560.

The previous prime is 30726741173. The next prime is 30726741203. The reversal of 30726741181 is 18114762703.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30726741181 - 2³ = 30726741173 is a prime.

It is a super-2 number, since 2×30726741181² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30726741121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1550920 + ... + 1570606.

It is an arithmetic number, because the mean of its divisors is an integer number (3862706848).

Almost surely, 2^30726741181 is an apocalyptic number.

It is an amenable number.

30726741181 is a deficient number, since it is larger than the sum of its proper divisors (174913603).

30726741181 is a wasteful number, since it uses less digits than its factorization.

30726741181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28491.

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 30726741181 in words is "thirty billion, seven hundred twenty-six million, seven hundred forty-one thousand, one hundred eighty-one".