753516988421 has 2 divisors, whose sum is σ = 753516988422. Its totient is φ = 753516988420.

The previous prime is 753516988409. The next prime is 753516988507. The reversal of 753516988421 is 124889615357.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 466741744225 + 286775244196 = 683185^2 + 535514^2 .

It is a cyclic number.

It is not a de Polignac number, because 753516988421 - 2¹⁴ = 753516972037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (753516984421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 376758494210 + 376758494211.

It is an arithmetic number, because the mean of its divisors is an integer number (376758494211).

Almost surely, 2^753516988421 is an apocalyptic number.

It is an amenable number.

753516988421 is a deficient number, since it is larger than the sum of its proper divisors (1).

753516988421 is an equidigital number, since it uses as much as digits as its factorization.

753516988421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14515200, while the sum is 59.

The spelling of 753516988421 in words is "seven hundred fifty-three billion, five hundred sixteen million, nine hundred eighty-eight thousand, four hundred twenty-one".