340242370537 has 2 divisors, whose sum is σ = 340242370538. Its totient is φ = 340242370536.

The previous prime is 340242370529. The next prime is 340242370603. The reversal of 340242370537 is 735073242043.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 261058661721 + 79183708816 = 510939^2 + 281396^2 .

It is a cyclic number.

It is not a de Polignac number, because 340242370537 - 2³ = 340242370529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340242370537.

It is not a weakly prime, because it can be changed into another prime (340242370837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170121185268 + 170121185269.

It is an arithmetic number, because the mean of its divisors is an integer number (170121185269).

Almost surely, 2^340242370537 is an apocalyptic number.

It is an amenable number.

340242370537 is a deficient number, since it is larger than the sum of its proper divisors (1).

340242370537 is an equidigital number, since it uses as much as digits as its factorization.

340242370537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 40.

The spelling of 340242370537 in words is "three hundred forty billion, two hundred forty-two million, three hundred seventy thousand, five hundred thirty-seven".