9457081931477 has 2 divisors, whose sum is σ = 9457081931478. Its totient is φ = 9457081931476.

The previous prime is 9457081931461. The next prime is 9457081931513. The reversal of 9457081931477 is 7741391807549.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6937144751716 + 2519937179761 = 2633846^2 + 1587431^2 .

It is a cyclic number.

It is not a de Polignac number, because 9457081931477 - 2⁴ = 9457081931461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9457081931447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4728540965738 + 4728540965739.

It is an arithmetic number, because the mean of its divisors is an integer number (4728540965739).

Almost surely, 2^{9457081931477} is an apocalyptic number.

It is an amenable number.

9457081931477 is a deficient number, since it is larger than the sum of its proper divisors (1).

9457081931477 is an equidigital number, since it uses as much as digits as its factorization.

9457081931477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53343360, while the sum is 65.

The spelling of 9457081931477 in words is "nine trillion, four hundred fifty-seven billion, eighty-one million, nine hundred thirty-one thousand, four hundred seventy-seven".