197702802405 has 32 divisors (see below), whose sum is σ = 362809451520. Its totient is φ = 102040153920.

The previous prime is 197702802383. The next prime is 197702802419. The reversal of 197702802405 is 504208207791.

It is a happy number.

It is not a de Polignac number, because 197702802405 - 2²⁰ = 197701753829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23616222 + ... + 23624591.

It is an arithmetic number, because the mean of its divisors is an integer number (11337795360).

Almost surely, 2^197702802405 is an apocalyptic number.

197702802405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

197702802405 is a deficient number, since it is larger than the sum of its proper divisors (165106649115).

197702802405 is a wasteful number, since it uses less digits than its factorization.

197702802405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47240858 (or 47240852 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 197702802405 in words is "one hundred ninety-seven billion, seven hundred two million, eight hundred two thousand, four hundred five".