61051755272 has 16 divisors (see below), whose sum is σ = 114876540240. Its totient is φ = 30418011216.

The previous prime is 61051755269. The next prime is 61051755313. The reversal of 61051755272 is 27255715016.

It is a happy number.

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, 13480898 + ... + 13485425.

It is an arithmetic number, because the mean of its divisors is an integer number (7179783765).

Almost surely, 2^61051755272 is an apocalyptic number.

It is an amenable number.

61051755272 is a deficient number, since it is larger than the sum of its proper divisors (53824784968).

61051755272 is a wasteful number, since it uses less digits than its factorization.

61051755272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26966612 (or 26966608 counting only the distinct ones).

The product of its (nonzero) digits is 147000, while the sum is 41.

The spelling of 61051755272 in words is "sixty-one billion, fifty-one million, seven hundred fifty-five thousand, two hundred seventy-two".