612457745794 has 4 divisors (see below), whose sum is σ = 918686618694. Its totient is φ = 306228872896.

The previous prime is 612457745773. The next prime is 612457745803. The reversal of 612457745794 is 497547754216.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 533100038769 + 79357707025 = 730137^2 + 281705^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153114436447 + ... + 153114436450.

Almost surely, 2^612457745794 is an apocalyptic number.

612457745794 is a deficient number, since it is larger than the sum of its proper divisors (306228872900).

612457745794 is a wasteful number, since it uses less digits than its factorization.

612457745794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306228872899.

The product of its digits is 59270400, while the sum is 61.

The spelling of 612457745794 in words is "six hundred twelve billion, four hundred fifty-seven million, seven hundred forty-five thousand, seven hundred ninety-four".