42430581549261 has 32 divisors (see below), whose sum is σ = 63166541984640. Its totient is φ = 28149200956800.

The previous prime is 42430581549157. The next prime is 42430581549277. The reversal of 42430581549261 is 16294518503424.

42430581549261 is a `hidden beast` number, since 4 + 2 + 4 + 3 + 0 + 581 + 54 + 9 + 2 + 6 + 1 = 666.

It is not a de Polignac number, because 42430581549261 - 2¹⁴ = 42430581532877 is a prime.

It is a super-2 number, since 2×42430581549261² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42430581549198 and 42430581549207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42430581544261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42121471 + ... + 43117043.

It is an arithmetic number, because the mean of its divisors is an integer number (1973954437020).

Almost surely, 2^{42430581549261} is an apocalyptic number.

It is an amenable number.

42430581549261 is a deficient number, since it is larger than the sum of its proper divisors (20735960435379).

42430581549261 is a wasteful number, since it uses less digits than its factorization.

42430581549261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003274 (or 1003268 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 42430581549261 in words is "forty-two trillion, four hundred thirty billion, five hundred eighty-one million, five hundred forty-nine thousand, two hundred sixty-one".