61763770628 has 12 divisors (see below), whose sum is σ = 123527541312. Its totient is φ = 26470187400.

The previous prime is 61763770583. The next prime is 61763770631. The reversal of 61763770628 is 82607736716.

61763770628 is an admirable number.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 61763770628.

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, 1102924448 + ... + 1102924503.

It is an arithmetic number, because the mean of its divisors is an integer number (10293961776).

Almost surely, 2^61763770628 is an apocalyptic number.

It is an amenable number.

61763770628 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61763770628 is a wasteful number, since it uses less digits than its factorization.

61763770628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205848962 (or 2205848960 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 53.

The spelling of 61763770628 in words is "sixty-one billion, seven hundred sixty-three million, seven hundred seventy thousand, six hundred twenty-eight".