61785007230 has 32 divisors (see below), whose sum is σ = 157006607904. Its totient is φ = 15506825216.

The previous prime is 61785007127. The next prime is 61785007243. The reversal of 61785007230 is 3270058716.

It is a super-2 number, since 2×61785007230² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 60573027 + ... + 60574046.

It is an arithmetic number, because the mean of its divisors is an integer number (4906456497).

Almost surely, 2^61785007230 is an apocalyptic number.

61785007230 is an abundant number, since it is smaller than the sum of its proper divisors (95221600674).

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

61785007230 is a wasteful number, since it uses less digits than its factorization.

61785007230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121147100.

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 61785007230 in words is "sixty-one billion, seven hundred eighty-five million, seven thousand, two hundred thirty".