746466208421 has 2 divisors, whose sum is σ = 746466208422. Its totient is φ = 746466208420.

The previous prime is 746466208417. The next prime is 746466208459. The reversal of 746466208421 is 124802664647.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 657372316225 + 89093892196 = 810785^2 + 298486^2 .

It is a cyclic number.

It is not a de Polignac number, because 746466208421 - 2² = 746466208417 is a prime.

It is a super-2 number, since 2×746466208421² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 746466208421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (746466208721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373233104210 + 373233104211.

It is an arithmetic number, because the mean of its divisors is an integer number (373233104211).

Almost surely, 2^746466208421 is an apocalyptic number.

It is an amenable number.

746466208421 is a deficient number, since it is larger than the sum of its proper divisors (1).

746466208421 is an equidigital number, since it uses as much as digits as its factorization.

746466208421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3096576, while the sum is 50.

The spelling of 746466208421 in words is "seven hundred forty-six billion, four hundred sixty-six million, two hundred eight thousand, four hundred twenty-one".