61228303968 has 96 divisors (see below), whose sum is σ = 175925427552. Its totient is φ = 18530611200.

The previous prime is 61228303951. The next prime is 61228303991. The reversal of 61228303968 is 86930382216.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 326013 + ... + 478268.

It is an arithmetic number, because the mean of its divisors is an integer number (1832556537).

Almost surely, 2^61228303968 is an apocalyptic number.

It is an amenable number.

61228303968 is an abundant number, since it is smaller than the sum of its proper divisors (114697123584).

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

61228303968 is a wasteful number, since it uses less digits than its factorization.

61228303968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804368 (or 804360 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 61228303968 in words is "sixty-one billion, two hundred twenty-eight million, three hundred three thousand, nine hundred sixty-eight".