973072611505 has 4 divisors (see below), whose sum is σ = 1167687133812. Its totient is φ = 778458089200.

The previous prime is 973072611503. The next prime is 973072611529. The reversal of 973072611505 is 505116270379.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 439249492081 + 533823119424 = 662759^2 + 730632^2 .

It is not a de Polignac number, because 973072611505 - 2¹ = 973072611503 is a prime.

It is a super-2 number, since 2×973072611505² (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 (973072611503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97307261146 + ... + 97307261155.

It is an arithmetic number, because the mean of its divisors is an integer number (291921783453).

Almost surely, 2^973072611505 is an apocalyptic number.

It is an amenable number.

973072611505 is a deficient number, since it is larger than the sum of its proper divisors (194614522307).

973072611505 is a wasteful number, since it uses less digits than its factorization.

973072611505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194614522306.

The product of its (nonzero) digits is 396900, while the sum is 46.

The spelling of 973072611505 in words is "nine hundred seventy-three billion, seventy-two million, six hundred eleven thousand, five hundred five".