354681647864 has 8 divisors (see below), whose sum is σ = 665028089760. Its totient is φ = 177340823928.

The previous prime is 354681647863. The next prime is 354681647867. The reversal of 354681647864 is 468746186453.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 354681647797 and 354681647806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354681647861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22167602984 + ... + 22167602999.

It is an arithmetic number, because the mean of its divisors is an integer number (83128511220).

Almost surely, 2^354681647864 is an apocalyptic number.

It is an amenable number.

354681647864 is a deficient number, since it is larger than the sum of its proper divisors (310346441896).

354681647864 is a wasteful number, since it uses less digits than its factorization.

354681647864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44335205989 (or 44335205985 counting only the distinct ones).

The product of its digits is 92897280, while the sum is 62.

The spelling of 354681647864 in words is "three hundred fifty-four billion, six hundred eighty-one million, six hundred forty-seven thousand, eight hundred sixty-four".