30255679491 has 8 divisors (see below), whose sum is σ = 41642225664. Its totient is φ = 19519793160.

The previous prime is 30255679471. The next prime is 30255679507. The reversal of 30255679491 is 19497655203.

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

It is not a de Polignac number, because 30255679491 - 2⁶ = 30255679427 is a prime.

It is a super-2 number, since 2×30255679491² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30255679451) 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, 162664851 + ... + 162665036.

It is an arithmetic number, because the mean of its divisors is an integer number (5205278208).

Almost surely, 2^30255679491 is an apocalyptic number.

30255679491 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

30255679491 is a deficient number, since it is larger than the sum of its proper divisors (11386546173).

30255679491 is a wasteful number, since it uses less digits than its factorization.

30255679491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325329921.

The product of its (nonzero) digits is 2041200, while the sum is 51.

The spelling of 30255679491 in words is "thirty billion, two hundred fifty-five million, six hundred seventy-nine thousand, four hundred ninety-one".