42077804197 has 8 divisors (see below), whose sum is σ = 49434063840. Its totient is φ = 35310045360.

The previous prime is 42077804189. The next prime is 42077804239. The reversal of 42077804197 is 79140877024.

It is a happy number.

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 42077804197 - 2³ = 42077804189 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 42077804197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42077804137) 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, 147125047 + ... + 147125332.

It is an arithmetic number, because the mean of its divisors is an integer number (6179257980).

Almost surely, 2^42077804197 is an apocalyptic number.

It is an amenable number.

42077804197 is a deficient number, since it is larger than the sum of its proper divisors (7356259643).

42077804197 is a wasteful number, since it uses less digits than its factorization.

42077804197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294250403.

The product of its (nonzero) digits is 790272, while the sum is 49.

The spelling of 42077804197 in words is "forty-two billion, seventy-seven million, eight hundred four thousand, one hundred ninety-seven".