42478495651 has 2 divisors, whose sum is σ = 42478495652. Its totient is φ = 42478495650.

The previous prime is 42478495627. The next prime is 42478495721. The reversal of 42478495651 is 15659487424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42478495651 - 2⁷ = 42478495523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42478495592 and 42478495601.

It is not a weakly prime, because it can be changed into another prime (42478495151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21239247825 + 21239247826.

It is an arithmetic number, because the mean of its divisors is an integer number (21239247826).

Almost surely, 2^42478495651 is an apocalyptic number.

42478495651 is a deficient number, since it is larger than the sum of its proper divisors (1).

42478495651 is an equidigital number, since it uses as much as digits as its factorization.

42478495651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9676800, while the sum is 55.

The spelling of 42478495651 in words is "forty-two billion, four hundred seventy-eight million, four hundred ninety-five thousand, six hundred fifty-one".