42579261277 has 4 divisors (see below), whose sum is σ = 48662012896. Its totient is φ = 36496509660.

The previous prime is 42579261253. The next prime is 42579261301. The reversal of 42579261277 is 77216297524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (42579261253) and next prime (42579261301).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42579261277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42579061277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3041375799 + ... + 3041375812.

It is an arithmetic number, because the mean of its divisors is an integer number (12165503224).

Almost surely, 2^42579261277 is an apocalyptic number.

It is an amenable number.

42579261277 is a deficient number, since it is larger than the sum of its proper divisors (6082751619).

42579261277 is an equidigital number, since it uses as much as digits as its factorization.

42579261277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6082751618.

The product of its digits is 2963520, while the sum is 52.

The spelling of 42579261277 in words is "forty-two billion, five hundred seventy-nine million, two hundred sixty-one thousand, two hundred seventy-seven".