613772378 has 16 divisors (see below), whose sum is σ = 943838784. Its totient is φ = 299171040.

The previous prime is 613772377. The next prime is 613772399. The reversal of 613772378 is 873277316.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (613772377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161051 + ... + 164817.

It is an arithmetic number, because the mean of its divisors is an integer number (58989924).

Almost surely, 2^613772378 is an apocalyptic number.

613772378 is a deficient number, since it is larger than the sum of its proper divisors (330066406).

613772378 is a wasteful number, since it uses less digits than its factorization.

613772378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5797.

The product of its digits is 296352, while the sum is 44.

The square root of 613772378 is about 24774.4299228055. The cubic root of 613772378 is about 849.8372828089.

The spelling of 613772378 in words is "six hundred thirteen million, seven hundred seventy-two thousand, three hundred seventy-eight".