61907784130 has 16 divisors (see below), whose sum is σ = 114025500864. Its totient is φ = 24187227120.

The previous prime is 61907784121. The next prime is 61907784167. The reversal of 61907784130 is 3148770916.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71985366 + ... + 71986225.

It is an arithmetic number, because the mean of its divisors is an integer number (7126593804).

Almost surely, 2^61907784130 is an apocalyptic number.

61907784130 is a deficient number, since it is larger than the sum of its proper divisors (52117716734).

61907784130 is a wasteful number, since it uses less digits than its factorization.

61907784130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143971641.

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 61907784130 in words is "sixty-one billion, nine hundred seven million, seven hundred eighty-four thousand, one hundred thirty".