46909928569 has 9 divisors (see below), whose sum is σ = 54570456111. Its totient is φ = 40207210680.

The previous prime is 46909928557. The next prime is 46909928573. The reversal of 46909928569 is 96582990964.

The square root of 46909928569 is 216587.

It is a perfect power (a square), and thus also a powerful number.

46909928569 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., 13325700969 + 33584227600 = 115437^2 + 183260^2 .

It is not a de Polignac number, because 46909928569 - 2⁷ = 46909928441 is a prime.

It is a super-2 number, since 2×46909928569² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46909928509) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1500639 + ... + 1531579.

Almost surely, 2^46909928569 is an apocalyptic number.

46909928569 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

46909928569 is the 216587-th square number.

46909928569 is the 108294-th centered octagonal number.

It is an amenable number.

46909928569 is a deficient number, since it is larger than the sum of its proper divisors (7660527542).

46909928569 is an frugal number, since it uses more digits than its factorization.

46909928569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61896 (or 30948 counting only the distinct ones).

The product of its (nonzero) digits is 75582720, while the sum is 67.

The spelling of 46909928569 in words is "forty-six billion, nine hundred nine million, nine hundred twenty-eight thousand, five hundred sixty-nine".