763748415421 has 2 divisors, whose sum is σ = 763748415422. Its totient is φ = 763748415420.

The previous prime is 763748415407. The next prime is 763748415449. The reversal of 763748415421 is 124514847367.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 511353708100 + 252394707321 = 715090^2 + 502389^2 .

It is a cyclic number.

It is not a de Polignac number, because 763748415421 - 2²⁵ = 763714860989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (763748415721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 381874207710 + 381874207711.

It is an arithmetic number, because the mean of its divisors is an integer number (381874207711).

Almost surely, 2^763748415421 is an apocalyptic number.

It is an amenable number.

763748415421 is a deficient number, since it is larger than the sum of its proper divisors (1).

763748415421 is an equidigital number, since it uses as much as digits as its factorization.

763748415421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4515840, while the sum is 52.

The spelling of 763748415421 in words is "seven hundred sixty-three billion, seven hundred forty-eight million, four hundred fifteen thousand, four hundred twenty-one".