65463973408357 has 4 divisors (see below), whose sum is σ = 65464005970060. Its totient is φ = 65463940846656.

The previous prime is 65463973408343. The next prime is 65463973408367. The reversal of 65463973408357 is 75380437936456.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48804629132961 + 16659344275396 = 6986031^2 + 4081586^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65463973408357 is a prime.

It is a super-2 number, since 2×65463973408357² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65463973408367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13051668 + ... + 17357245.

It is an arithmetic number, because the mean of its divisors is an integer number (16366001492515).

Almost surely, 2^{65463973408357} is an apocalyptic number.

It is an amenable number.

65463973408357 is a deficient number, since it is larger than the sum of its proper divisors (32561703).

65463973408357 is a wasteful number, since it uses less digits than its factorization.

65463973408357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32561702.

The product of its (nonzero) digits is 1371686400, while the sum is 70.

The spelling of 65463973408357 in words is "sixty-five trillion, four hundred sixty-three billion, nine hundred seventy-three million, four hundred eight thousand, three hundred fifty-seven".