61680514 has 48 divisors (see below), whose sum is σ = 112942080. Its totient is φ = 25159680.

The previous prime is 61680481. The next prime is 61680527. The reversal of 61680514 is 41508616.

61680514 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 239874 + ... + 240130.

It is an arithmetic number, because the mean of its divisors is an integer number (2352960).

Almost surely, 2^61680514 is an apocalyptic number.

61680514 is a deficient number, since it is larger than the sum of its proper divisors (51261566).

61680514 is a wasteful number, since it uses less digits than its factorization.

61680514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 61680514 is about 7853.6942899504. The cubic root of 61680514 is about 395.1081560368.

The spelling of 61680514 in words is "sixty-one million, six hundred eighty thousand, five hundred fourteen".