463940829661 has 8 divisors (see below), whose sum is σ = 470201713848. Its totient is φ = 457712640000.

The previous prime is 463940829659. The next prime is 463940829689. The reversal of 463940829661 is 166928049364.

It can be written as a sum of positive squares in 4 ways, for example, as 379093878436 + 84846951225 = 615706^2 + 291285^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 7-Lehmer number, since φ(463940829661) divides (463940829661-1)⁷.

It is a cyclic number.

It is not a de Polignac number, because 463940829661 - 2¹ = 463940829659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 463940829596 and 463940829605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (463940829601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8145060 + ... + 8201821.

It is an arithmetic number, because the mean of its divisors is an integer number (58775214231).

Almost surely, 2^463940829661 is an apocalyptic number.

463940829661 is the 304612-nd centered decagonal number.

It is an amenable number.

463940829661 is a deficient number, since it is larger than the sum of its proper divisors (6260884187).

463940829661 is a wasteful number, since it uses less digits than its factorization.

463940829661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16347263.

The product of its (nonzero) digits is 13436928, while the sum is 58.

The spelling of 463940829661 in words is "four hundred sixty-three billion, nine hundred forty million, eight hundred twenty-nine thousand, six hundred sixty-one".