1672820262646 has 32 divisors (see below), whose sum is σ = 2730437176320. Its totient is φ = 764018804736.

The previous prime is 1672820262637. The next prime is 1672820262647. The reversal of 1672820262646 is 6462620282761.

It is a super-2 number, since 2×1672820262646² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1672820262593 and 1672820262602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672820262647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23512395 + ... + 23583433.

It is an arithmetic number, because the mean of its divisors is an integer number (85326161760).

Almost surely, 2^{1672820262646} is an apocalyptic number.

1672820262646 is a deficient number, since it is larger than the sum of its proper divisors (1057616913674).

1672820262646 is a wasteful number, since it uses less digits than its factorization.

1672820262646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80488.

The product of its (nonzero) digits is 4644864, while the sum is 52.

The spelling of 1672820262646 in words is "one trillion, six hundred seventy-two billion, eight hundred twenty million, two hundred sixty-two thousand, six hundred forty-six".