1012172062761 has 12 divisors (see below), whose sum is σ = 1462072746420. Its totient is φ = 674759944320.

The previous prime is 1012172062757. The next prime is 1012172062763. The reversal of 1012172062761 is 1672602712101.

1012172062761 is a `hidden beast` number, since 1 + 0 + 1 + 2 + 1 + 7 + 20 + 627 + 6 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 91999989225 + 920172073536 = 303315^2 + 959256^2 .

It is not a de Polignac number, because 1012172062761 - 2² = 1012172062757 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012172062763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1484100 + ... + 2055941.

It is an arithmetic number, because the mean of its divisors is an integer number (121839395535).

Almost surely, 2^{1012172062761} is an apocalyptic number.

It is an amenable number.

1012172062761 is a deficient number, since it is larger than the sum of its proper divisors (449900683659).

1012172062761 is a wasteful number, since it uses less digits than its factorization.

1012172062761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3571816 (or 3571813 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

Adding to 1012172062761 its reverse (1672602712101), we get a palindrome (2684774774862).

The spelling of 1012172062761 in words is "one trillion, twelve billion, one hundred seventy-two million, sixty-two thousand, seven hundred sixty-one".