151181728409 has 2 divisors, whose sum is σ = 151181728410. Its totient is φ = 151181728408.

The previous prime is 151181728367. The next prime is 151181728429. The reversal of 151181728409 is 904827181151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143425051225 + 7756677184 = 378715^2 + 88072^2 .

It is a cyclic number.

It is not a de Polignac number, because 151181728409 - 2⁸ = 151181728153 is a prime.

It is not a weakly prime, because it can be changed into another prime (151181728429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75590864204 + 75590864205.

It is an arithmetic number, because the mean of its divisors is an integer number (75590864205).

Almost surely, 2^151181728409 is an apocalyptic number.

It is an amenable number.

151181728409 is a deficient number, since it is larger than the sum of its proper divisors (1).

151181728409 is an equidigital number, since it uses as much as digits as its factorization.

151181728409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 47.

The spelling of 151181728409 in words is "one hundred fifty-one billion, one hundred eighty-one million, seven hundred twenty-eight thousand, four hundred nine".