670491698948135 has 16 divisors (see below), whose sum is σ = 840932947348416. Its totient is φ = 512240349696768.

The previous prime is 670491698948129. The next prime is 670491698948209. The reversal of 670491698948135 is 531849896194076.

It is a cyclic number.

It is not a de Polignac number, because 670491698948135 - 2⁸ = 670491698947879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 670491698948135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4724696144 + ... + 4724838053.

It is an arithmetic number, because the mean of its divisors is an integer number (52558309209276).

Almost surely, 2^{670491698948135} is an apocalyptic number.

670491698948135 is a deficient number, since it is larger than the sum of its proper divisors (170441248400281).

670491698948135 is a wasteful number, since it uses less digits than its factorization.

670491698948135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9449534842.

The product of its (nonzero) digits is 2821754880, while the sum is 80.

The spelling of 670491698948135 in words is "six hundred seventy trillion, four hundred ninety-one billion, six hundred ninety-eight million, nine hundred forty-eight thousand, one hundred thirty-five".