42340615651 has 4 divisors (see below), whose sum is σ = 42555542832. Its totient is φ = 42125688472.

The previous prime is 42340615649. The next prime is 42340615679. The reversal of 42340615651 is 15651604324.

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

It is a cyclic number.

It is not a de Polignac number, because 42340615651 - 2¹ = 42340615649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42340615651.

It is not an unprimeable number, because it can be changed into a prime (42340625651) 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, 107463295 + ... + 107463688.

It is an arithmetic number, because the mean of its divisors is an integer number (10638885708).

Almost surely, 2^42340615651 is an apocalyptic number.

42340615651 is a deficient number, since it is larger than the sum of its proper divisors (214927181).

42340615651 is a wasteful number, since it uses less digits than its factorization.

42340615651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214927180.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 42340615651 in words is "forty-two billion, three hundred forty million, six hundred fifteen thousand, six hundred fifty-one".