93648367621 has 2 divisors, whose sum is σ = 93648367622. Its totient is φ = 93648367620.

The previous prime is 93648367609. The next prime is 93648367691. The reversal of 93648367621 is 12676384639.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89631976996 + 4016390625 = 299386^2 + 63375^2 .

It is an emirp because it is prime and its reverse (12676384639) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 93648367621 - 2³¹ = 91500883973 is a prime.

It is a super-2 number, since 2×93648367621² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (93648367691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46824183810 + 46824183811.

It is an arithmetic number, because the mean of its divisors is an integer number (46824183811).

Almost surely, 2^93648367621 is an apocalyptic number.

It is an amenable number.

93648367621 is a deficient number, since it is larger than the sum of its proper divisors (1).

93648367621 is an equidigital number, since it uses as much as digits as its factorization.

93648367621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 55.

The spelling of 93648367621 in words is "ninety-three billion, six hundred forty-eight million, three hundred sixty-seven thousand, six hundred twenty-one".