30261900661885 has 16 divisors (see below), whose sum is σ = 36684708038784. Its totient is φ = 23962798026432.

The previous prime is 30261900661873. The next prime is 30261900661921. The reversal of 30261900661885 is 58816600916203.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30261900661885 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13253707 + ... + 15368296.

It is an arithmetic number, because the mean of its divisors is an integer number (2292794252424).

Almost surely, 2^{30261900661885} is an apocalyptic number.

It is an amenable number.

30261900661885 is a deficient number, since it is larger than the sum of its proper divisors (6422807376899).

30261900661885 is a wasteful number, since it uses less digits than its factorization.

30261900661885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28624164.

The product of its (nonzero) digits is 3732480, while the sum is 55.

The spelling of 30261900661885 in words is "thirty trillion, two hundred sixty-one billion, nine hundred million, six hundred sixty-one thousand, eight hundred eighty-five".