61256444276 has 12 divisors (see below), whose sum is σ = 107497383840. Its totient is φ = 30542906040.

The previous prime is 61256444273. The next prime is 61256444281. The reversal of 61256444276 is 67244465216.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 61256444276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61256444273) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 21327410 + ... + 21330281.

It is an arithmetic number, because the mean of its divisors is an integer number (8958115320).

Almost surely, 2^61256444276 is an apocalyptic number.

It is an amenable number.

61256444276 is a deficient number, since it is larger than the sum of its proper divisors (46240939564).

61256444276 is a wasteful number, since it uses less digits than its factorization.

61256444276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42658054 (or 42658052 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 47.

The spelling of 61256444276 in words is "sixty-one billion, two hundred fifty-six million, four hundred forty-four thousand, two hundred seventy-six".