42279775365 has 32 divisors (see below), whose sum is σ = 72183530880. Its totient is φ = 21069766656.

The previous prime is 42279775361. The next prime is 42279775367. The reversal of 42279775365 is 56357797224.

It is not a de Polignac number, because 42279775365 - 2² = 42279775361 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42279775361) 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, 995292 + ... + 1036901.

It is an arithmetic number, because the mean of its divisors is an integer number (2255735340).

Almost surely, 2^42279775365 is an apocalyptic number.

It is an amenable number.

42279775365 is a deficient number, since it is larger than the sum of its proper divisors (29903755515).

42279775365 is a wasteful number, since it uses less digits than its factorization.

42279775365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032293.

The product of its digits is 22226400, while the sum is 57.

The spelling of 42279775365 in words is "forty-two billion, two hundred seventy-nine million, seven hundred seventy-five thousand, three hundred sixty-five".