61948278 has 24 divisors (see below), whose sum is σ = 153396048. Its totient is φ = 17699472.

The previous prime is 61948247. The next prime is 61948291. The reversal of 61948278 is 87284916.

61948278 is a `hidden beast` number, since 619 + 4 + 8 + 27 + 8 = 666.

61948278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 245701 + ... + 245952.

It is an arithmetic number, because the mean of its divisors is an integer number (6391502).

Almost surely, 2^61948278 is an apocalyptic number.

61948278 is an abundant number, since it is smaller than the sum of its proper divisors (91447770).

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

61948278 is a wasteful number, since it uses less digits than its factorization.

61948278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491668 (or 491665 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 61948278 is about 7870.7228384692. The cubic root of 61948278 is about 395.6790711718.

It can be divided in two parts, 61948 and 278, that added together give a palindrome (62226).

The spelling of 61948278 in words is "sixty-one million, nine hundred forty-eight thousand, two hundred seventy-eight".