61652798768 has 40 divisors (see below), whose sum is σ = 130391810640. Its totient is φ = 28006749440.

The previous prime is 61652798719. The next prime is 61652798789. The reversal of 61652798768 is 86789725616.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181118 + ... + 395106.

It is an arithmetic number, because the mean of its divisors is an integer number (3259795266).

Almost surely, 2^61652798768 is an apocalyptic number.

It is an amenable number.

61652798768 is an abundant number, since it is smaller than the sum of its proper divisors (68739011872).

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

61652798768 is a wasteful number, since it uses less digits than its factorization.

61652798768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215645 (or 215639 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 65.

The spelling of 61652798768 in words is "sixty-one billion, six hundred fifty-two million, seven hundred ninety-eight thousand, seven hundred sixty-eight".