61435509670 has 16 divisors (see below), whose sum is σ = 117088854048. Its totient is φ = 23128662400.

The previous prime is 61435509659. The next prime is 61435509713. The reversal of 61435509670 is 7690553416.

It is a self number, because there is not a number n which added to its sum of digits gives 61435509670.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180692506 + ... + 180692845.

It is an arithmetic number, because the mean of its divisors is an integer number (7318053378).

Almost surely, 2^61435509670 is an apocalyptic number.

61435509670 is a deficient number, since it is larger than the sum of its proper divisors (55653344378).

61435509670 is a wasteful number, since it uses less digits than its factorization.

61435509670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361385375.

The product of its (nonzero) digits is 680400, while the sum is 46.

The spelling of 61435509670 in words is "sixty-one billion, four hundred thirty-five million, five hundred nine thousand, six hundred seventy".