30977319189893 has 16 divisors (see below), whose sum is σ = 31323040166976. Its totient is φ = 30632373158400.

The previous prime is 30977319189847. The next prime is 30977319189907. The reversal of 30977319189893 is 39898191377903.

It is a cyclic number.

It is not a de Polignac number, because 30977319189893 - 2¹⁰ = 30977319188869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30977319189493) 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, 765173030 + ... + 765213512.

It is an arithmetic number, because the mean of its divisors is an integer number (1957690010436).

Almost surely, 2^{30977319189893} is an apocalyptic number.

It is an amenable number.

30977319189893 is a deficient number, since it is larger than the sum of its proper divisors (345720977083).

30977319189893 is a wasteful number, since it uses less digits than its factorization.

30977319189893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49844.

The product of its (nonzero) digits is 555532992, while the sum is 77.

The spelling of 30977319189893 in words is "thirty trillion, nine hundred seventy-seven billion, three hundred nineteen million, one hundred eighty-nine thousand, eight hundred ninety-three".