61777058 has 16 divisors (see below), whose sum is σ = 106877760. Its totient is φ = 26232336.

The previous prime is 61777049. The next prime is 61777073. The reversal of 61777058 is 85077716.

61777058 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 18716 + ... + 21767.

It is an arithmetic number, because the mean of its divisors is an integer number (6679860).

Almost surely, 2^61777058 is an apocalyptic number.

61777058 is a deficient number, since it is larger than the sum of its proper divisors (45100702).

61777058 is a wasteful number, since it uses less digits than its factorization.

61777058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40601.

The product of its (nonzero) digits is 82320, while the sum is 41.

The square root of 61777058 is about 7859.8382935020. The cubic root of 61777058 is about 395.3141932145.

The spelling of 61777058 in words is "sixty-one million, seven hundred seventy-seven thousand, fifty-eight".