1772255802961 has 16 divisors (see below), whose sum is σ = 2117237309440. Its totient is φ = 1451465393040.

The previous prime is 1772255802949. The next prime is 1772255802979. The reversal of 1772255802961 is 1692085522771.

It is a cyclic number.

It is not a de Polignac number, because 1772255802961 - 2³⁷ = 1634816849489 is a prime.

It is a super-2 number, since 2×1772255802961² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1772255802901) 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, 51673221 + ... + 51707506.

It is an arithmetic number, because the mean of its divisors is an integer number (132327331840).

Almost surely, 2^{1772255802961} is an apocalyptic number.

It is an amenable number.

1772255802961 is a deficient number, since it is larger than the sum of its proper divisors (344981506479).

1772255802961 is a wasteful number, since it uses less digits than its factorization.

1772255802961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103380844.

The product of its (nonzero) digits is 4233600, while the sum is 55.

The spelling of 1772255802961 in words is "one trillion, seven hundred seventy-two billion, two hundred fifty-five million, eight hundred two thousand, nine hundred sixty-one".