42861307945 has 16 divisors (see below), whose sum is σ = 51635346048. Its totient is φ = 34154619520.

The previous prime is 42861307913. The next prime is 42861307963. The reversal of 42861307945 is 54970316824.

It is a happy number.

It is not a de Polignac number, because 42861307945 - 2⁵ = 42861307913 is a prime.

It is a super-2 number, since 2×42861307945² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7228572 + ... + 7234498.

It is an arithmetic number, because the mean of its divisors is an integer number (3227209128).

It is a 1-persistent number, because it is pandigital, but 2⋅42861307945 = 85722615890 is not.

Almost surely, 2^42861307945 is an apocalyptic number.

It is an amenable number.

42861307945 is a deficient number, since it is larger than the sum of its proper divisors (8774038103).

42861307945 is a wasteful number, since it uses less digits than its factorization.

42861307945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11360.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 42861307945 in words is "forty-two billion, eight hundred sixty-one million, three hundred seven thousand, nine hundred forty-five".