42102615653 has 4 divisors (see below), whose sum is σ = 48117275040. Its totient is φ = 36087956268.

The previous prime is 42102615649. The next prime is 42102615689. The reversal of 42102615653 is 35651620124.

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 not a de Polignac number, because 42102615653 - 2² = 42102615649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42102615353) 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, 3007329683 + ... + 3007329696.

It is an arithmetic number, because the mean of its divisors is an integer number (12029318760).

Almost surely, 2^42102615653 is an apocalyptic number.

It is an amenable number.

42102615653 is a deficient number, since it is larger than the sum of its proper divisors (6014659387).

42102615653 is an equidigital number, since it uses as much as digits as its factorization.

42102615653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6014659386.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 42102615653 in words is "forty-two billion, one hundred two million, six hundred fifteen thousand, six hundred fifty-three".