61680410 has 32 divisors (see below), whose sum is σ = 121492224. Its totient is φ = 22360000.

The previous prime is 61680391. The next prime is 61680427. The reversal of 61680410 is 1408616.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61680410.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46760 + ... + 48060.

It is an arithmetic number, because the mean of its divisors is an integer number (3796632).

Almost surely, 2^61680410 is an apocalyptic number.

61680410 is a deficient number, since it is larger than the sum of its proper divisors (59811814).

61680410 is a wasteful number, since it uses less digits than its factorization.

61680410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 61680410 is about 7853.6876688598. The cubic root of 61680410 is about 395.1079339717.

The spelling of 61680410 in words is "sixty-one million, six hundred eighty thousand, four hundred ten".