61821736010 has 64 divisors (see below), whose sum is σ = 115929792000. Its totient is φ = 23716737792.

The previous prime is 61821736003. The next prime is 61821736057. The reversal of 61821736010 is 1063712816.

61821736010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8021819 + ... + 8029521.

It is an arithmetic number, because the mean of its divisors is an integer number (1811403000).

Almost surely, 2^61821736010 is an apocalyptic number.

61821736010 is a deficient number, since it is larger than the sum of its proper divisors (54108055990).

61821736010 is a wasteful number, since it uses less digits than its factorization.

61821736010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8055.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 61821736010 in words is "sixty-one billion, eight hundred twenty-one million, seven hundred thirty-six thousand, ten".