312040245541504 has 16 divisors (see below), whose sum is σ = 621642676664970. Its totient is φ = 156020122770688.

The previous prime is 312040245541469. The next prime is 312040245541553. The reversal of 312040245541504 is 405145542040213.

It can be written as a sum of positive squares in only one way, i.e., 157302767361600 + 154737478179904 = 12542040^2 + 12439352^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×312040245541504² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1218907209019 + ... + 1218907209274.

Almost surely, 2^{312040245541504} is an apocalyptic number.

It is an amenable number.

312040245541504 is a deficient number, since it is larger than the sum of its proper divisors (309602431123466).

312040245541504 is an equidigital number, since it uses as much as digits as its factorization.

312040245541504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2437814418307 (or 2437814418295 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 40.

Adding to 312040245541504 its reverse (405145542040213), we get a palindrome (717185787581717).

The spelling of 312040245541504 in words is "three hundred twelve trillion, forty billion, two hundred forty-five million, five hundred forty-one thousand, five hundred four".