391370989141 has 16 divisors (see below), whose sum is σ = 427561964928. Its totient is φ = 355282329600.

The previous prime is 391370989117. The next prime is 391370989159. The reversal of 391370989141 is 141989073193.

It is a de Polignac number, because none of the positive numbers 2^k-391370989141 is a prime.

It is a super-2 number, since 2×391370989141² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (391370983141) 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, 27787221 + ... + 27801301.

It is an arithmetic number, because the mean of its divisors is an integer number (26722622808).

Almost surely, 2^391370989141 is an apocalyptic number.

It is an amenable number.

391370989141 is a deficient number, since it is larger than the sum of its proper divisors (36190975787).

391370989141 is a wasteful number, since it uses less digits than its factorization.

391370989141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17532.

The product of its (nonzero) digits is 1469664, while the sum is 55.

The spelling of 391370989141 in words is "three hundred ninety-one billion, three hundred seventy million, nine hundred eighty-nine thousand, one hundred forty-one".