99463462421 has 2 divisors, whose sum is σ = 99463462422. Its totient is φ = 99463462420.

The previous prime is 99463462393. The next prime is 99463462499. The reversal of 99463462421 is 12426436499.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98078580625 + 1384881796 = 313175^2 + 37214^2 .

It is a cyclic number.

It is not a de Polignac number, because 99463462421 - 2³⁴ = 82283593237 is a prime.

It is a super-3 number, since 3×99463462421³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 99463462421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99463462321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49731731210 + 49731731211.

It is an arithmetic number, because the mean of its divisors is an integer number (49731731211).

Almost surely, 2^99463462421 is an apocalyptic number.

It is an amenable number.

99463462421 is a deficient number, since it is larger than the sum of its proper divisors (1).

99463462421 is an equidigital number, since it uses as much as digits as its factorization.

99463462421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 50.

The spelling of 99463462421 in words is "ninety-nine billion, four hundred sixty-three million, four hundred sixty-two thousand, four hundred twenty-one".