670000400737 has 2 divisors, whose sum is σ = 670000400738. Its totient is φ = 670000400736.

The previous prime is 670000400659. The next prime is 670000400809. The reversal of 670000400737 is 737004000076.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 387044492641 + 282955908096 = 622129^2 + 531936^2 .

It is a cyclic number.

It is not a de Polignac number, because 670000400737 - 2¹⁵ = 670000367969 is a prime.

It is not a weakly prime, because it can be changed into another prime (670000440737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335000200368 + 335000200369.

It is an arithmetic number, because the mean of its divisors is an integer number (335000200369).

Almost surely, 2^670000400737 is an apocalyptic number.

It is an amenable number.

670000400737 is a deficient number, since it is larger than the sum of its proper divisors (1).

670000400737 is an equidigital number, since it uses as much as digits as its factorization.

670000400737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24696, while the sum is 34.

The spelling of 670000400737 in words is "six hundred seventy billion, four hundred thousand, seven hundred thirty-seven".