61627681010 has 128 divisors (see below), whose sum is σ = 132545839104. Its totient is φ = 20187406080.

The previous prime is 61627681001. The next prime is 61627681013. The reversal of 61627681010 is 1018672616.

It is not an unprimeable number, because it can be changed into a prime (61627681013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 62692979 + ... + 62693961.

It is an arithmetic number, because the mean of its divisors is an integer number (1035514368).

Almost surely, 2^61627681010 is an apocalyptic number.

61627681010 is an abundant number, since it is smaller than the sum of its proper divisors (70918158094).

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

61627681010 is a wasteful number, since it uses less digits than its factorization.

61627681010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368.

The product of its (nonzero) digits is 24192, while the sum is 38.

The spelling of 61627681010 in words is "sixty-one billion, six hundred twenty-seven million, six hundred eighty-one thousand, ten".