678349580237 has 16 divisors (see below), whose sum is σ = 778668583680. Its totient is φ = 578884102272.

The previous prime is 678349580137. The next prime is 678349580263. The reversal of 678349580237 is 732085943876.

It is not a de Polignac number, because 678349580237 - 2¹⁰ = 678349579213 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 678349580237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678349580297) 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, 20947064 + ... + 20979422.

It is an arithmetic number, because the mean of its divisors is an integer number (48666786480).

Almost surely, 2^678349580237 is an apocalyptic number.

It is an amenable number.

678349580237 is a deficient number, since it is larger than the sum of its proper divisors (100319003443).

678349580237 is a wasteful number, since it uses less digits than its factorization.

678349580237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45452.

The product of its (nonzero) digits is 60963840, while the sum is 62.

The spelling of 678349580237 in words is "six hundred seventy-eight billion, three hundred forty-nine million, five hundred eighty thousand, two hundred thirty-seven".