152678635481 has 2 divisors, whose sum is σ = 152678635482. Its totient is φ = 152678635480.

The previous prime is 152678635433. The next prime is 152678635531. The reversal of 152678635481 is 184536876251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106932270025 + 45746365456 = 327005^2 + 213884^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152678635481 is a prime.

It is a super-2 number, since 2×152678635481² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (152678635381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76339317740 + 76339317741.

It is an arithmetic number, because the mean of its divisors is an integer number (76339317741).

Almost surely, 2^152678635481 is an apocalyptic number.

It is an amenable number.

152678635481 is a deficient number, since it is larger than the sum of its proper divisors (1).

152678635481 is an equidigital number, since it uses as much as digits as its factorization.

152678635481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9676800, while the sum is 56.

The spelling of 152678635481 in words is "one hundred fifty-two billion, six hundred seventy-eight million, six hundred thirty-five thousand, four hundred eighty-one".