247026707055145 has 16 divisors (see below), whose sum is σ = 301300326826128. Its totient is φ = 194376034621440.

The previous prime is 247026707055127. The next prime is 247026707055239. The reversal of 247026707055145 is 541550707620742.

It can be written as a sum of positive squares in 8 ways, for example, as 28768247868816 + 218258459186329 = 5363604^2 + 14773573^2 .

It is not a de Polignac number, because 247026707055145 - 2¹³ = 247026707046953 is a prime.

It is a super-2 number, since 2×247026707055145² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1191664 + ... + 22259233.

It is an arithmetic number, because the mean of its divisors is an integer number (18831270426633).

Almost surely, 2^{247026707055145} is an apocalyptic number.

It is an amenable number.

247026707055145 is a deficient number, since it is larger than the sum of its proper divisors (54273619770983).

247026707055145 is a wasteful number, since it uses less digits than its factorization.

247026707055145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23485500.

The product of its (nonzero) digits is 16464000, while the sum is 55.

The spelling of 247026707055145 in words is "two hundred forty-seven trillion, twenty-six billion, seven hundred seven million, fifty-five thousand, one hundred forty-five".