678749379030 has 64 divisors (see below), whose sum is σ = 1810268536320. Its totient is φ = 180972815328.

The previous prime is 678749379001. The next prime is 678749379031. The reversal of 678749379030 is 30973947876.

678749379030 is a `hidden beast` number, since 6 + 78 + 7 + 493 + 79 + 0 + 3 + 0 = 666.

678749379030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×678749379030² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678749379031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1657989 + ... + 2026431.

It is an arithmetic number, because the mean of its divisors is an integer number (28285445880).

Almost surely, 2^678749379030 is an apocalyptic number.

678749379030 is an abundant number, since it is smaller than the sum of its proper divisors (1131519157290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

678749379030 is a wasteful number, since it uses less digits than its factorization.

678749379030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375282 (or 375276 counting only the distinct ones).

The product of its (nonzero) digits is 48009024, while the sum is 63.

The spelling of 678749379030 in words is "six hundred seventy-eight billion, seven hundred forty-nine million, three hundred seventy-nine thousand, thirty".