30754533621 has 16 divisors (see below), whose sum is σ = 49620760704. Its totient is φ = 16540253184.

The previous prime is 30754533617. The next prime is 30754533631. The reversal of 30754533621 is 12633545703.

It is not a de Polignac number, because 30754533621 - 2² = 30754533617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30754533621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30754533631) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 43073220 + ... + 43073933.

It is an arithmetic number, because the mean of its divisors is an integer number (3101297544).

Almost surely, 2^30754533621 is an apocalyptic number.

It is an amenable number.

30754533621 is a deficient number, since it is larger than the sum of its proper divisors (18866227083).

30754533621 is a wasteful number, since it uses less digits than its factorization.

30754533621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86147180.

The product of its (nonzero) digits is 226800, while the sum is 39.

The spelling of 30754533621 in words is "thirty billion, seven hundred fifty-four million, five hundred thirty-three thousand, six hundred twenty-one".