394564985154 has 24 divisors (see below), whose sum is σ = 899885054640. Its totient is φ = 124599468888.

The previous prime is 394564985137. The next prime is 394564985159. The reversal of 394564985154 is 451589465493.

394564985154 is a `hidden beast` number, since 3 + 9 + 45 + 6 + 498 + 51 + 54 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 394564985091 and 394564985100.

It is not an unprimeable number, because it can be changed into a prime (394564985159) 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 11 ways as a sum of consecutive naturals, for example, 576849052 + ... + 576849735.

It is an arithmetic number, because the mean of its divisors is an integer number (37495210610).

Almost surely, 2^394564985154 is an apocalyptic number.

394564985154 is an abundant number, since it is smaller than the sum of its proper divisors (505320069486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

394564985154 is a wasteful number, since it uses less digits than its factorization.

394564985154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153698814 (or 1153698811 counting only the distinct ones).

The product of its digits is 93312000, while the sum is 63.

The spelling of 394564985154 in words is "three hundred ninety-four billion, five hundred sixty-four million, nine hundred eighty-five thousand, one hundred fifty-four".