421956300947 has 2 divisors, whose sum is σ = 421956300948. Its totient is φ = 421956300946.

The previous prime is 421956300901. The next prime is 421956301021. The reversal of 421956300947 is 749003659124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421956300947 - 2¹⁶ = 421956235411 is a prime.

It is a super-3 number, since 3×421956300947³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421956300895 and 421956300904.

It is not a weakly prime, because it can be changed into another prime (421956300347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210978150473 + 210978150474.

It is an arithmetic number, because the mean of its divisors is an integer number (210978150474).

Almost surely, 2^421956300947 is an apocalyptic number.

421956300947 is a deficient number, since it is larger than the sum of its proper divisors (1).

421956300947 is an equidigital number, since it uses as much as digits as its factorization.

421956300947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 421956300947 in words is "four hundred twenty-one billion, nine hundred fifty-six million, three hundred thousand, nine hundred forty-seven".