30829728055 has 16 divisors (see below), whose sum is σ = 44767874880. Its totient is φ = 19896832512.

The previous prime is 30829728053. The next prime is 30829728077. The reversal of 30829728055 is 55082792803.

It is a cyclic number.

It is not a de Polignac number, because 30829728055 - 2¹ = 30829728053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30829728053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25906740 + ... + 25907929.

It is an arithmetic number, because the mean of its divisors is an integer number (2797992180).

Almost surely, 2^30829728055 is an apocalyptic number.

30829728055 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30829728055 is a deficient number, since it is larger than the sum of its proper divisors (13938146825).

30829728055 is a wasteful number, since it uses less digits than its factorization.

30829728055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51814698.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 30829728055 in words is "thirty billion, eight hundred twenty-nine million, seven hundred twenty-eight thousand, fifty-five".