64771235354 has 12 divisors (see below), whose sum is σ = 113019196554. Its totient is φ = 27759100824.

The previous prime is 64771235327. The next prime is 64771235363. The reversal of 64771235354 is 45353217746.

It is a happy number.

64771235354 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 61193401129 + 3577834225 = 247373^2 + 59815^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64771235299 and 64771235308.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 330465389 + ... + 330465584.

Almost surely, 2^64771235354 is an apocalyptic number.

64771235354 is a deficient number, since it is larger than the sum of its proper divisors (48247961200).

64771235354 is a wasteful number, since it uses less digits than its factorization.

64771235354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660930989 (or 660930982 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 47.

The spelling of 64771235354 in words is "sixty-four billion, seven hundred seventy-one million, two hundred thirty-five thousand, three hundred fifty-four".