42402015521445 has 32 divisors (see below), whose sum is σ = 67903462247040. Its totient is φ = 22594333639680.

The previous prime is 42402015521429. The next prime is 42402015521479. The reversal of 42402015521445 is 54412551020424.

It is not a de Polignac number, because 42402015521445 - 2⁴ = 42402015521429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155748601 + ... + 156020609.

It is an arithmetic number, because the mean of its divisors is an integer number (2121983195220).

Almost surely, 2^{42402015521445} is an apocalyptic number.

It is an amenable number.

42402015521445 is a deficient number, since it is larger than the sum of its proper divisors (25501446725595).

42402015521445 is a wasteful number, since it uses less digits than its factorization.

42402015521445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281205.

The product of its (nonzero) digits is 256000, while the sum is 39.

Adding to 42402015521445 its reverse (54412551020424), we get a palindrome (96814566541869).

The spelling of 42402015521445 in words is "forty-two trillion, four hundred two billion, fifteen million, five hundred twenty-one thousand, four hundred forty-five".