194657756485 has 16 divisors (see below), whose sum is σ = 234321647616. Its totient is φ = 155238406848.

The previous prime is 194657756479. The next prime is 194657756507. The reversal of 194657756485 is 584657756491.

It is a cyclic number.

It is not a de Polignac number, because 194657756485 - 2⁷ = 194657756357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 194657756485.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3779527 + ... + 3830683.

It is an arithmetic number, because the mean of its divisors is an integer number (14645102976).

Almost surely, 2^194657756485 is an apocalyptic number.

It is an amenable number.

194657756485 is a deficient number, since it is larger than the sum of its proper divisors (39663891131).

194657756485 is a wasteful number, since it uses less digits than its factorization.

194657756485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53532.

The product of its digits is 254016000, while the sum is 67.

The spelling of 194657756485 in words is "one hundred ninety-four billion, six hundred fifty-seven million, seven hundred fifty-six thousand, four hundred eighty-five".