42129583797 has 16 divisors (see below), whose sum is σ = 64215827072. Its totient is φ = 24067160640.

The previous prime is 42129583789. The next prime is 42129583813. The reversal of 42129583797 is 79738592124.

It is a happy number.

It is not a de Polignac number, because 42129583797 - 2³ = 42129583789 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 (42129583777) 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, 211354 + ... + 359067.

It is an arithmetic number, because the mean of its divisors is an integer number (4013489192).

Almost surely, 2^42129583797 is an apocalyptic number.

It is an amenable number.

42129583797 is a deficient number, since it is larger than the sum of its proper divisors (22086243275).

42129583797 is a wasteful number, since it uses less digits than its factorization.

42129583797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573948.

The product of its digits is 7620480, while the sum is 57.

The spelling of 42129583797 in words is "forty-two billion, one hundred twenty-nine million, five hundred eighty-three thousand, seven hundred ninety-seven".