93531947917 has 2 divisors, whose sum is σ = 93531947918. Its totient is φ = 93531947916.

The previous prime is 93531947903. The next prime is 93531947923. The reversal of 93531947917 is 71974913539.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85283857156 + 8248090761 = 292034^2 + 90819^2 .

It is a cyclic number.

It is not a de Polignac number, because 93531947917 - 2²⁷ = 93397730189 is a prime.

It is a super-2 number, since 2×93531947917² (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 (93531947317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46765973958 + 46765973959.

It is an arithmetic number, because the mean of its divisors is an integer number (46765973959).

Almost surely, 2^93531947917 is an apocalyptic number.

It is an amenable number.

93531947917 is a deficient number, since it is larger than the sum of its proper divisors (1).

93531947917 is an equidigital number, since it uses as much as digits as its factorization.

93531947917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6429780, while the sum is 58.

The spelling of 93531947917 in words is "ninety-three billion, five hundred thirty-one million, nine hundred forty-seven thousand, nine hundred seventeen".