5197873661 has 8 divisors (see below), whose sum is σ = 5439507264. Its totient is φ = 4957543360.

The previous prime is 5197873631. The next prime is 5197873663. The reversal of 5197873661 is 1663787915.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5197873661 - 2²² = 5193679357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5197873663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317660 + ... + 333621.

It is an arithmetic number, because the mean of its divisors is an integer number (679938408).

Almost surely, 2^5197873661 is an apocalyptic number.

It is an amenable number.

5197873661 is a deficient number, since it is larger than the sum of its proper divisors (241633603).

5197873661 is a wasteful number, since it uses less digits than its factorization.

5197873661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651651.

The product of its digits is 1905120, while the sum is 53.

The square root of 5197873661 is about 72096.2804935178. The cubic root of 5197873661 is about 1732.2420351548.

The spelling of 5197873661 in words is "five billion, one hundred ninety-seven million, eight hundred seventy-three thousand, six hundred sixty-one".