855945749402 has 4 divisors (see below), whose sum is σ = 1283918624106. Its totient is φ = 427972874700.

The previous prime is 855945749381. The next prime is 855945749437. The reversal of 855945749402 is 204947549558.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 446011601281 + 409934148121 = 667841^2 + 640261^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213986437349 + ... + 213986437352.

Almost surely, 2^855945749402 is an apocalyptic number.

855945749402 is a deficient number, since it is larger than the sum of its proper divisors (427972874704).

855945749402 is a wasteful number, since it uses less digits than its factorization.

855945749402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427972874703.

The product of its (nonzero) digits is 72576000, while the sum is 62.

The spelling of 855945749402 in words is "eight hundred fifty-five billion, nine hundred forty-five million, seven hundred forty-nine thousand, four hundred two".