30401691655791 has 16 divisors (see below), whose sum is σ = 40653466671744. Its totient is φ = 20208858587424.

The previous prime is 30401691655789. The next prime is 30401691655831. The reversal of 30401691655791 is 19755619610403.

It is not a de Polignac number, because 30401691655791 - 2¹ = 30401691655789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30401691650791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41782105 + ... + 42503501.

It is an arithmetic number, because the mean of its divisors is an integer number (2540841666984).

Almost surely, 2^{30401691655791} is an apocalyptic number.

30401691655791 is a deficient number, since it is larger than the sum of its proper divisors (10251775015953).

30401691655791 is a wasteful number, since it uses less digits than its factorization.

30401691655791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762230.

The product of its (nonzero) digits is 6123600, while the sum is 57.

The spelling of 30401691655791 in words is "thirty trillion, four hundred one billion, six hundred ninety-one million, six hundred fifty-five thousand, seven hundred ninety-one".