61881048 has 24 divisors (see below), whose sum is σ = 167594700. Its totient is φ = 20626992.

The previous prime is 61881047. The next prime is 61881059. The reversal of 61881048 is 84018816.

61881048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-3 number, since 3×61881048³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61881047) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 429658 + ... + 429801.

Almost surely, 2^61881048 is an apocalyptic number.

It is an amenable number.

61881048 is an abundant number, since it is smaller than the sum of its proper divisors (105713652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61881048 is a wasteful number, since it uses less digits than its factorization.

61881048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859471 (or 859464 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 61881048 is about 7866.4507879984. The cubic root of 61881048 is about 395.5358811117.

The spelling of 61881048 in words is "sixty-one million, eight hundred eighty-one thousand, forty-eight".