10407748541821 has 2 divisors, whose sum is σ = 10407748541822. Its totient is φ = 10407748541820.

The previous prime is 10407748541819. The next prime is 10407748541863. The reversal of 10407748541821 is 12814584770401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9609138219321 + 798610322500 = 3099861^2 + 893650^2 .

It is a cyclic number.

It is not a de Polignac number, because 10407748541821 - 2¹ = 10407748541819 is a prime.

Together with 10407748541819, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10407748541321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5203874270910 + 5203874270911.

It is an arithmetic number, because the mean of its divisors is an integer number (5203874270911).

Almost surely, 2^{10407748541821} is an apocalyptic number.

It is an amenable number.

10407748541821 is a deficient number, since it is larger than the sum of its proper divisors (1).

10407748541821 is an equidigital number, since it uses as much as digits as its factorization.

10407748541821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2007040, while the sum is 52.

The spelling of 10407748541821 in words is "ten trillion, four hundred seven billion, seven hundred forty-eight million, five hundred forty-one thousand, eight hundred twenty-one".