147976481278057 has 2 divisors, whose sum is σ = 147976481278058. Its totient is φ = 147976481278056.

The previous prime is 147976481278051. The next prime is 147976481278111. The reversal of 147976481278057 is 750872184679741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145837601352976 + 2138879925081 = 12076324^2 + 1462491^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147976481278057 is a prime.

It is a super-2 number, since 2×147976481278057² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (147976481278051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73988240639028 + 73988240639029.

It is an arithmetic number, because the mean of its divisors is an integer number (73988240639029).

Almost surely, 2^{147976481278057} is an apocalyptic number.

It is an amenable number.

147976481278057 is a deficient number, since it is larger than the sum of its proper divisors (1).

147976481278057 is an equidigital number, since it uses as much as digits as its factorization.

147976481278057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1327656960, while the sum is 76.

The spelling of 147976481278057 in words is "one hundred forty-seven trillion, nine hundred seventy-six billion, four hundred eighty-one million, two hundred seventy-eight thousand, fifty-seven".