61426365228 has 54 divisors (see below), whose sum is σ = 161236085556. Its totient is φ = 20475446328.

The previous prime is 61426365151. The next prime is 61426365241. The reversal of 61426365228 is 82256362416.

61426365228 is a `hidden beast` number, since 6 + 1 + 4 + 2 + 636 + 5 + 2 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (54).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1144050 + ... + 1196537.

Almost surely, 2^61426365228 is an apocalyptic number.

It is an amenable number.

61426365228 is an abundant number, since it is smaller than the sum of its proper divisors (99809720328).

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

61426365228 is an equidigital number, since it uses as much as digits as its factorization.

61426365228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2340615 (or 2340592 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The spelling of 61426365228 in words is "sixty-one billion, four hundred twenty-six million, three hundred sixty-five thousand, two hundred twenty-eight".