611728356 has 12 divisors (see below), whose sum is σ = 1427366192. Its totient is φ = 203909448.

The previous prime is 611728339. The next prime is 611728367. The reversal of 611728356 is 653827116.

It is a tau number, because it is divible by the number of its divisors (12).

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, 25488670 + ... + 25488693.

Almost surely, 2^611728356 is an apocalyptic number.

It is an amenable number.

611728356 is an abundant number, since it is smaller than the sum of its proper divisors (815637836).

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

611728356 is a wasteful number, since it uses less digits than its factorization.

611728356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50977370 (or 50977368 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 611728356 is about 24733.1428653942. The cubic root of 611728356 is about 848.8928403973.

The spelling of 611728356 in words is "six hundred eleven million, seven hundred twenty-eight thousand, three hundred fifty-six".