612628378 has 8 divisors (see below), whose sum is σ = 936281268. Its totient is φ = 300534624.

The previous prime is 612628363. The next prime is 612628411. The reversal of 612628378 is 873826216.

It can be written as a sum of positive squares in 2 ways, for example, as 612414009 + 214369 = 24747^2 + 463^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2889651 + ... + 2889862.

Almost surely, 2^612628378 is an apocalyptic number.

612628378 is a deficient number, since it is larger than the sum of its proper divisors (323652890).

612628378 is a wasteful number, since it uses less digits than its factorization.

612628378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5779568.

The product of its digits is 193536, while the sum is 43.

The square root of 612628378 is about 24751.3308329067. The cubic root of 612628378 is about 849.3089552922.

The spelling of 612628378 in words is "six hundred twelve million, six hundred twenty-eight thousand, three hundred seventy-eight".