42174772509 has 16 divisors (see below), whose sum is σ = 57547144512. Its totient is φ = 27459602688.

The previous prime is 42174772483. The next prime is 42174772513. The reversal of 42174772509 is 90527747124.

It is not a de Polignac number, because 42174772509 - 2⁵ = 42174772477 is a prime.

It is a super-2 number, since 2×42174772509² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42174772109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2234299 + ... + 2253095.

It is an arithmetic number, because the mean of its divisors is an integer number (3596696532).

Almost surely, 2^42174772509 is an apocalyptic number.

It is an amenable number.

42174772509 is a deficient number, since it is larger than the sum of its proper divisors (15372372003).

42174772509 is a wasteful number, since it uses less digits than its factorization.

42174772509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36236.

The product of its (nonzero) digits is 987840, while the sum is 48.

The spelling of 42174772509 in words is "forty-two billion, one hundred seventy-four million, seven hundred seventy-two thousand, five hundred nine".