42373037261 has 4 divisors (see below), whose sum is σ = 42373682400. Its totient is φ = 42372392124.

The previous prime is 42373037227. The next prime is 42373037263. The reversal of 42373037261 is 16273037324.

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 a cyclic number.

It is not a de Polignac number, because 42373037261 - 2²⁶ = 42305928397 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 (42373037263) 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, 211241 + ... + 359678.

It is an arithmetic number, because the mean of its divisors is an integer number (10593420600).

Almost surely, 2^42373037261 is an apocalyptic number.

It is an amenable number.

42373037261 is a deficient number, since it is larger than the sum of its proper divisors (645139).

42373037261 is an equidigital number, since it uses as much as digits as its factorization.

42373037261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645138.

The product of its (nonzero) digits is 127008, while the sum is 38.

The spelling of 42373037261 in words is "forty-two billion, three hundred seventy-three million, thirty-seven thousand, two hundred sixty-one".