42407309653 has 4 divisors (see below), whose sum is σ = 42827184108. Its totient is φ = 41987435200.

The previous prime is 42407309647. The next prime is 42407309657. The reversal of 42407309653 is 35690370424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39226575249 + 3180734404 = 198057^2 + 56398^2 .

It is a cyclic number.

It is not a de Polignac number, because 42407309653 - 2¹⁷ = 42407178581 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 (42407309657) 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, 209937076 + ... + 209937277.

It is an arithmetic number, because the mean of its divisors is an integer number (10706796027).

Almost surely, 2^42407309653 is an apocalyptic number.

It is an amenable number.

42407309653 is a deficient number, since it is larger than the sum of its proper divisors (419874455).

42407309653 is a wasteful number, since it uses less digits than its factorization.

42407309653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419874454.

The product of its (nonzero) digits is 544320, while the sum is 43.

The spelling of 42407309653 in words is "forty-two billion, four hundred seven million, three hundred nine thousand, six hundred fifty-three".