42001152075261 has 36 divisors (see below), whose sum is σ = 61722917181120. Its totient is φ = 27522217542960.

The previous prime is 42001152075247. The next prime is 42001152075263. The reversal of 42001152075261 is 16257025110024.

42001152075261 is a `hidden beast` number, since 4 + 2 + 0 + 0 + 1 + 1 + 520 + 75 + 2 + 61 = 666.

It is not a de Polignac number, because 42001152075261 - 2¹⁰ = 42001152074237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42001152075263) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 226071196 + ... + 226256906.

Almost surely, 2^{42001152075261} is an apocalyptic number.

It is an amenable number.

42001152075261 is a deficient number, since it is larger than the sum of its proper divisors (19721765105859).

42001152075261 is a wasteful number, since it uses less digits than its factorization.

42001152075261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193054 (or 192992 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

Adding to 42001152075261 its reverse (16257025110024), we get a palindrome (58258177185285).

The spelling of 42001152075261 in words is "forty-two trillion, one billion, one hundred fifty-two million, seventy-five thousand, two hundred sixty-one".