42719297541 has 4 divisors (see below), whose sum is σ = 56959063392. Its totient is φ = 28479531692.

The previous prime is 42719297527. The next prime is 42719297617. The reversal of 42719297541 is 14579291724.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42719297541 - 2⁹ = 42719297029 is a prime.

It is a super-3 number, since 3×42719297541³ (a number of 33 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42719297041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7119882921 + ... + 7119882926.

It is an arithmetic number, because the mean of its divisors is an integer number (14239765848).

Almost surely, 2^42719297541 is an apocalyptic number.

It is an amenable number.

42719297541 is a deficient number, since it is larger than the sum of its proper divisors (14239765851).

42719297541 is a wasteful number, since it uses less digits than its factorization.

42719297541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14239765850.

The product of its digits is 1270080, while the sum is 51.

The spelling of 42719297541 in words is "forty-two billion, seven hundred nineteen million, two hundred ninety-seven thousand, five hundred forty-one".