42364552261 has 4 divisors (see below), whose sum is σ = 42366536352. Its totient is φ = 42362568172.

The previous prime is 42364552249. The next prime is 42364552273. The reversal of 42364552261 is 16225546324.

It is a happy number.

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 (42364552249) and next prime (42364552273).

It is a cyclic number.

It is not a de Polignac number, because 42364552261 - 2²³ = 42356163653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42364552661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 959665 + ... + 1002838.

It is an arithmetic number, because the mean of its divisors is an integer number (10591634088).

Almost surely, 2^42364552261 is an apocalyptic number.

It is an amenable number.

42364552261 is a deficient number, since it is larger than the sum of its proper divisors (1984091).

42364552261 is a wasteful number, since it uses less digits than its factorization.

42364552261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984090.

The product of its digits is 345600, while the sum is 40.

The spelling of 42364552261 in words is "forty-two billion, three hundred sixty-four million, five hundred fifty-two thousand, two hundred sixty-one".