537121978341 has 16 divisors (see below), whose sum is σ = 797846972160. Its totient is φ = 319138787520.

The previous prime is 537121978331. The next prime is 537121978363. The reversal of 537121978341 is 143879121735.

It is not a de Polignac number, because 537121978341 - 2⁹ = 537121977829 is a prime.

It is a super-2 number, since 2×537121978341² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537121978331) 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, 237453325 + ... + 237455586.

It is an arithmetic number, because the mean of its divisors is an integer number (49865435760).

Almost surely, 2^537121978341 is an apocalyptic number.

It is an amenable number.

537121978341 is a deficient number, since it is larger than the sum of its proper divisors (260724993819).

537121978341 is a wasteful number, since it uses less digits than its factorization.

537121978341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474908956.

The product of its digits is 1270080, while the sum is 51.

The spelling of 537121978341 in words is "five hundred thirty-seven billion, one hundred twenty-one million, nine hundred seventy-eight thousand, three hundred forty-one".