537121978342 has 16 divisors (see below), whose sum is σ = 807545138400. Its totient is φ = 267940366848.

The previous prime is 537121978331. The next prime is 537121978363. The reversal of 537121978342 is 243879121735.

It is a self number, because there is not a number n which added to its sum of digits gives 537121978342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17448028 + ... + 17478784.

It is an arithmetic number, because the mean of its divisors is an integer number (50471571150).

Almost surely, 2^537121978342 is an apocalyptic number.

537121978342 is a deficient number, since it is larger than the sum of its proper divisors (270423160058).

537121978342 is a wasteful number, since it uses less digits than its factorization.

537121978342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50655.

The product of its digits is 2540160, while the sum is 52.

The spelling of 537121978342 in words is "five hundred thirty-seven billion, one hundred twenty-one million, nine hundred seventy-eight thousand, three hundred forty-two".