1064966472778 has 32 divisors (see below), whose sum is σ = 1832304756240. Its totient is φ = 462609838080.

The previous prime is 1064966472769. The next prime is 1064966472799. The reversal of 1064966472778 is 8772746694601.

It can be written as a sum of positive squares in 8 ways, for example, as 45983226969 + 1018983245809 = 214437^2 + 1009447^2 .

It is a super-2 number, since 2×1064966472778² (a number of 25 digits) contains 22 as substring.

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, 7053783 + ... + 7203178.

Almost surely, 2^{1064966472778} is an apocalyptic number.

1064966472778 is a deficient number, since it is larger than the sum of its proper divisors (767338283462).

1064966472778 is a wasteful number, since it uses less digits than its factorization.

1064966472778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14257019 (or 14256993 counting only the distinct ones).

The product of its (nonzero) digits is 170698752, while the sum is 67.

The spelling of 1064966472778 in words is "one trillion, sixty-four billion, nine hundred sixty-six million, four hundred seventy-two thousand, seven hundred seventy-eight".