397854439046 has 16 divisors (see below), whose sum is σ = 611357559120. Its totient is φ = 194068907520.

The previous prime is 397854439039. The next prime is 397854439051. The reversal of 397854439046 is 640934458793.

It is a self number, because there is not a number n which added to its sum of digits gives 397854439046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3243485 + ... + 3363911.

It is an arithmetic number, because the mean of its divisors is an integer number (38209847445).

Almost surely, 2^397854439046 is an apocalyptic number.

397854439046 is a deficient number, since it is larger than the sum of its proper divisors (213503120074).

397854439046 is a wasteful number, since it uses less digits than its factorization.

397854439046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160759.

The product of its (nonzero) digits is 78382080, while the sum is 62.

The spelling of 397854439046 in words is "three hundred ninety-seven billion, eight hundred fifty-four million, four hundred thirty-nine thousand, forty-six".