1473056307661 has 4 divisors (see below), whose sum is σ = 1474045601500. Its totient is φ = 1472067013824.

The previous prime is 1473056307641. The next prime is 1473056307677. The reversal of 1473056307661 is 1667036503741.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 723870849636 + 749185458025 = 850806^2 + 865555^2 .

It is a cyclic number.

It is not a de Polignac number, because 1473056307661 - 2¹⁹ = 1473055783373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1473056307641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494644686 + ... + 494647663.

It is an arithmetic number, because the mean of its divisors is an integer number (368511400375).

Almost surely, 2^{1473056307661} is an apocalyptic number.

It is an amenable number.

1473056307661 is a deficient number, since it is larger than the sum of its proper divisors (989293839).

1473056307661 is an equidigital number, since it uses as much as digits as its factorization.

1473056307661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989293838.

The product of its (nonzero) digits is 1905120, while the sum is 49.

The spelling of 1473056307661 in words is "one trillion, four hundred seventy-three billion, fifty-six million, three hundred seven thousand, six hundred sixty-one".