42145943253369 has 16 divisors (see below), whose sum is σ = 59157828475200. Its totient is φ = 26615958137856.

The previous prime is 42145943253361. The next prime is 42145943253373. The reversal of 42145943253369 is 96335234954124.

It is not a de Polignac number, because 42145943253369 - 2³ = 42145943253361 is a prime.

It is a super-2 number, since 2×42145943253369² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42145943253361) 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, 34566864 + ... + 35765345.

It is an arithmetic number, because the mean of its divisors is an integer number (3697364279700).

Almost surely, 2^{42145943253369} is an apocalyptic number.

It is an amenable number.

42145943253369 is a deficient number, since it is larger than the sum of its proper divisors (17011885221831).

42145943253369 is a wasteful number, since it uses less digits than its factorization.

42145943253369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70342744.

The product of its digits is 83980800, while the sum is 60.

The spelling of 42145943253369 in words is "forty-two trillion, one hundred forty-five billion, nine hundred forty-three million, two hundred fifty-three thousand, three hundred sixty-nine".