61264021026 has 16 divisors (see below), whose sum is σ = 131953276224. Its totient is φ = 18850467984.

The previous prime is 61264020989. The next prime is 61264021069. The reversal of 61264021026 is 62012046216.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61264020984 and 61264021002.

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, 392718006 + ... + 392718161.

It is an arithmetic number, because the mean of its divisors is an integer number (8247079764).

Almost surely, 2^61264021026 is an apocalyptic number.

61264021026 is an abundant number, since it is smaller than the sum of its proper divisors (70689255198).

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

61264021026 is a wasteful number, since it uses less digits than its factorization.

61264021026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785436185.

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 61264021026 in words is "sixty-one billion, two hundred sixty-four million, twenty-one thousand, twenty-six".