612133378 has 16 divisors (see below), whose sum is σ = 963889920. Its totient is φ = 291171600.

The previous prime is 612133369. The next prime is 612133381. The reversal of 612133378 is 873331216.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80013 + ... + 87328.

It is an arithmetic number, because the mean of its divisors is an integer number (60243120).

Almost surely, 2^612133378 is an apocalyptic number.

612133378 is a deficient number, since it is larger than the sum of its proper divisors (351756542).

612133378 is a wasteful number, since it uses less digits than its factorization.

612133378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167433.

The product of its digits is 18144, while the sum is 34.

The square root of 612133378 is about 24741.3293498955. The cubic root of 612133378 is about 849.0801481677.

The spelling of 612133378 in words is "six hundred twelve million, one hundred thirty-three thousand, three hundred seventy-eight".