42407309651 has 24 divisors (see below), whose sum is σ = 49780860624. Its totient is φ = 36018440640.

The previous prime is 42407309647. The next prime is 42407309657. The reversal of 42407309651 is 15690370424.

It is not a de Polignac number, because 42407309651 - 2² = 42407309647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42407309599 and 42407309608.

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 23 ways as a sum of consecutive naturals, for example, 4700621 + ... + 4709633.

It is an arithmetic number, because the mean of its divisors is an integer number (2074202526).

Almost surely, 2^42407309651 is an apocalyptic number.

42407309651 is a deficient number, since it is larger than the sum of its proper divisors (7373550973).

42407309651 is a wasteful number, since it uses less digits than its factorization.

42407309651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9891 (or 9884 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 42407309651 in words is "forty-two billion, four hundred seven million, three hundred nine thousand, six hundred fifty-one".