61430790205 has 8 divisors (see below), whose sum is σ = 74025388800. Its totient is φ = 48939005136.

The previous prime is 61430790193. The next prime is 61430790227. The reversal of 61430790205 is 50209703416.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61430790205 - 2¹³ = 61430782013 is a prime.

It is a congruent number.

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, 25702065 + ... + 25704454.

It is an arithmetic number, because the mean of its divisors is an integer number (9253173600).

Almost surely, 2^61430790205 is an apocalyptic number.

It is an amenable number.

61430790205 is a deficient number, since it is larger than the sum of its proper divisors (12594598595).

61430790205 is a wasteful number, since it uses less digits than its factorization.

61430790205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51406763.

The product of its (nonzero) digits is 45360, while the sum is 37.

The spelling of 61430790205 in words is "sixty-one billion, four hundred thirty million, seven hundred ninety thousand, two hundred five".