30628615406 has 4 divisors (see below), whose sum is σ = 45942923112. Its totient is φ = 15314307702.

The previous prime is 30628615399. The next prime is 30628615411. The reversal of 30628615406 is 60451682603.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×30628615406² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7657153850 + ... + 7657153853.

It is an arithmetic number, because the mean of its divisors is an integer number (11485730778).

Almost surely, 2^30628615406 is an apocalyptic number.

30628615406 is a deficient number, since it is larger than the sum of its proper divisors (15314307706).

30628615406 is a wasteful number, since it uses less digits than its factorization.

30628615406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15314307705.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 30628615406 in words is "thirty billion, six hundred twenty-eight million, six hundred fifteen thousand, four hundred six".