10400421947 has 2 divisors, whose sum is σ = 10400421948. Its totient is φ = 10400421946.

The previous prime is 10400421937. The next prime is 10400422057. The reversal of 10400421947 is 74912400401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10400421947 - 2¹⁴ = 10400405563 is a prime.

It is not a weakly prime, because it can be changed into another prime (10400421937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5200210973 + 5200210974.

It is an arithmetic number, because the mean of its divisors is an integer number (5200210974).

Almost surely, 2^10400421947 is an apocalyptic number.

10400421947 is a deficient number, since it is larger than the sum of its proper divisors (1).

10400421947 is an equidigital number, since it uses as much as digits as its factorization.

10400421947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 10400421947 in words is "ten billion, four hundred million, four hundred twenty-one thousand, nine hundred forty-seven".