61881476 has 24 divisors (see below), whose sum is σ = 112334040. Its totient is φ = 29792000.

The previous prime is 61881451. The next prime is 61881481. The reversal of 61881476 is 67418816.

It can be written as a sum of positive squares in 4 ways, for example, as 3511876 + 58369600 = 1874^2 + 7640^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80936 + ... + 81696.

It is an arithmetic number, because the mean of its divisors is an integer number (4680585).

Almost surely, 2^61881476 is an apocalyptic number.

It is an amenable number.

61881476 is a deficient number, since it is larger than the sum of its proper divisors (50452564).

61881476 is a wasteful number, since it uses less digits than its factorization.

61881476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495 (or 1493 counting only the distinct ones).

The product of its digits is 64512, while the sum is 41.

The square root of 61881476 is about 7866.4779920877. The cubic root of 61881476 is about 395.5367930170.

The spelling of 61881476 in words is "sixty-one million, eight hundred eighty-one thousand, four hundred seventy-six".