80995007538937 has 16 divisors (see below), whose sum is σ = 82290482764560. Its totient is φ = 79709808365568.

The previous prime is 80995007538911. The next prime is 80995007538947. The reversal of 80995007538937 is 73983570059908.

It can be written as a sum of positive squares in 8 ways, for example, as 20957754385296 + 60037253153641 = 4577964^2 + 7748371^2 .

It is a cyclic number.

It is not a de Polignac number, because 80995007538937 - 2¹¹ = 80995007536889 is a prime.

It is a super-2 number, since 2×80995007538937² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80995007538937.

It is not an unprimeable number, because it can be changed into a prime (80995007538947) 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, 15416253 + ... + 19991269.

It is an arithmetic number, because the mean of its divisors is an integer number (5143155172785).

Almost surely, 2^{80995007538937} is an apocalyptic number.

It is an amenable number.

80995007538937 is a deficient number, since it is larger than the sum of its proper divisors (1295475225623).

80995007538937 is a wasteful number, since it uses less digits than its factorization.

80995007538937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4576140.

The product of its (nonzero) digits is 514382400, while the sum is 73.

The spelling of 80995007538937 in words is "eighty trillion, nine hundred ninety-five billion, seven million, five hundred thirty-eight thousand, nine hundred thirty-seven".